ロンタイ List of Products and Services

At the site, those using vegetative soil bags often have common concerns such as, "How do I stack them for on-site construction? I don't know how many I need..." and "Is a stability calculation necessary for the slope at this site?" Longtai can solve these problems! For over 65 years, Longtai has been manufacturing the above-mentioned greening materials for "vegetative construction" to protect slopes. These products can be installed manually, eliminating the need for large machinery, allowing for quick greening protection even in narrow or small areas. As a result, many of our products are actively used in disaster recovery sites. Among them, the vegetative soil bag "Green Bag" is equipped with seeds on all sides, has good workability, and is one of our best-selling products. Depending on the site, various stacking methods and construction techniques are used, but we often receive inquiries about how many bags are needed for certain stacking methods. If you let us know the necessary conditions for your site, Longtai will provide quantity and stability calculations free of charge! If you are facing challenges at the site, feel free to download our materials and consult with Longtai☆

• Sandbags

The "Ronstrong Net Method" by Rontai is a slope protection technique that enables "collapse prevention up to a depth of 1 meter" by combining vegetation mats with anchor materials and wire ropes. By connecting vegetation mats that cover the entire slope with wire mesh and wire ropes to anchor materials, it effectively prevents surface erosion through greening while also contributing to the prevention of surface collapse. 【Features】 - Protects a depth greater than the roots of plants (approximately 1 meter of surface), suppressing intermediate slope collapses and wedge-type collapses at the slope shoulder. - Can be constructed without large machinery such as spraying machines or belt conveyors. - Enables early stable greening with vegetation mats that include straw. Since manual construction is possible, it allows for reduced construction time and costs in small areas or locations where machinery access is difficult. Please utilize it for disaster prevention, disaster recovery, mountain conservation, and national resilience. *We are currently offering free materials introducing the product catalog and the benefits of the method! You can view them via PDF download. Feel free to consult us for detailed specifications.

• Special Construction Method

This document is a collection of case studies on the restoration of slopes that have collapsed due to natural disasters, using vegetation sheets, vegetation mats, and vegetation sandbags. We, at Rontai, have been manufacturing the above-mentioned greening materials for "vegetation work" to protect slopes for over 65 years. These products can be installed manually, eliminating the need for large machinery, allowing for rapid greening protection even in narrow or small areas. As a result, many of our products are actively used in disaster recovery sites. The appropriate products vary depending on the site conditions. We have created materials that allow for comparison with your challenging site and help visualize the post-greening restoration. We focus on products specialized for "early greening and erosion prevention," which are crucial in disaster recovery work, and also introduce economical products and user-friendly vegetation sandbags!

• Slope protection material

In this document, we will address issues such as soil runoff, erosion, and scouring under panels that occur during construction and maintenance work at solar power generation sites, by introducing case studies for each product! We have included numerous photographs of actual cases within solar facilities! If you are struggling with slope protection at solar power generation sites, please download the document and take a look♪ 【Are you facing any of these issues?】 ■ Erosion of the ground due to rainfall has made the mounting unstable ■ Water channels or retention ponds have been filled due to soil runoff ■ Rain droplets are falling through gaps in the panels, causing scouring underneath ■ Overgrowth of tall weeds and poor aesthetics due to bare land ■ Other disaster prevention and improvement of power generation efficiency, etc. We at Rontai can solve your problems! *For more details, please refer to the PDF document or feel free to contact us.

• Wall and rooftop greenery

Japan is blessed with a diverse range of climates, and the plants that grow naturally vary by region. By mixing seeds of suitable plant species for each region into vegetation sheets, we can promote greening of slopes and contribute to environmental protection. During the design and construction phases, we will propose the optimal seed mixture from the representatives of each prefecture. Please feel free to contact us☆ -------------------------------------------------------------------------------- Rontai offers free slope surveys at construction sites. For more details, please contact your nearest branch or sales office. --------------------------------------------------------------------------------

• Slope protection material

We have prepared a construction plan that includes the construction methods and sequence! It's my first time installing the product, and I don't know where to start... I don't know what steps to take... If you have such concerns, please download the materials and take a look◎

• Slope protection material

This document introduces the utilization of the Shirokumatt method frame type along with examples! Not only new installations but also repair cases! The construction site is located at an elevation of 831 meters, and the access road is narrow, making it difficult to bring in large machinery... In a region with low precipitation, there are concerns about the drying of vegetation substrates... Due to high foot traffic in tourist areas, it is preferable to use construction methods that consider the landscape... In such cases, please utilize the "Shirokumatt method frame type"! 【Features】 ■ Standard sizes tailored to the frame dimensions ■ No need for cutting or other processing, excellent workability ■ High flexibility allows for close adherence to uneven surfaces ■ Three standards available to match frame dimensions ■ Greening that is less affected by site conditions —————————————————————— Rontai offers free slope surveys at construction sites. For more details, please contact your nearest branch or sales office. ——————————————————————

• Civil Engineering Sheet

Introducing products with hexagonal wire mesh that are active in sites with severe unevenness, many small falling rocks and rolling stones, steep slopes, and areas where wild animals trample vegetation mats! 【Published Information】 ■ Benefits of products with hexagonal wire mesh ■ Construction achievements of products with hexagonal wire mesh ■ Lineup of products with hexagonal wire mesh *This document can be viewed immediately via "PDF Download."

• Slope protection material

Introducing the wire mesh vegetation mats that are actively used in sites with severe undulations, frequent small rock falls and rolling stones, steep slopes, and areas where wild animals trample on vegetation mats! 【Wire Mesh Lineup】 ■ Hexagonal Wire Mesh ■ Diamond Wire Mesh Both can be attached to vegetation mats! 【Contents】 ■ Advantages of Wire Mesh ■ Sites Where Wire Mesh Products Are Needed ■ What Are the Differences Between Hexagonal and Diamond Wire Mesh? *This document can be viewed immediately via "PDF Download."

• Slope protection material

"Ronkett Furaibou" is a vegetation mat designed to promote natural invasion. By incorporating natural material "straw," the seed capture effect has been enhanced! Additionally, it protects incoming seeds and buried seeds, promoting their growth. The upgraded Ronkett Furaibou catches incoming seeds without letting them escape, contributing to greening through surrounding plants! With four different grades available, it can accommodate various site conditions! 【Features】 ■ Natural invasion promoting vegetation mat ■ For cut and fill applications ■ Natural straw captures incoming seeds effectively ■ Available in four grades to suit various site conditions *For more details, please refer to the catalog or feel free to contact us. -------------------------------------------------------------------------------- Rontai offers free slope surveys at construction sites. For more information, please contact your nearest branch or sales office. --------------------------------------------------------------------------------

• Civil Engineering Sheet

We have compiled examples of green bag construction in the Kyushu region! Vegetation soil bags that can be installed without worrying about the front or back! Since seeds and fertilizers are attached to the entire surface, you can achieve greening simply by filling and installing local soil! In addition to details such as construction conditions and quantities of green bags used in private projects and road improvement works, we have included photos documenting the progress of greening after construction. For a limited time, we are offering a free case study collection! *For more details, please refer to the catalog or feel free to contact us. -------------------------------------------------------------------------------- Rontai offers free slope surveys at construction sites. For more information, please contact your nearest branch or sales office. --------------------------------------------------------------------------------

• Sandbags

In Hiroshima Prefecture, there is a system for registering technologies that contribute to "longevity, efficiency, and advancement" at all stages of investigation, design, construction, and maintenance of public civil engineering facilities, referred to as "innovative technologies." Under this system, "Kilket" has been registered in the efficiency category as "Recommended Technology, Category 3." It has been evaluated as the highest grade of registration, recognized as "technology with particularly excellent effects of utilization." Kilket contributes to the efficiency of work processes, disaster prevention, and disaster recovery at various sites due to its high erosion prevention effectiveness and greening performance! *This document can be viewed immediately via "PDF Download." Please feel free to contact us with any inquiries.

• Slope protection material

Domestic Ron Tai seeds refer to indigenous species that are cultivated or collected from the wild within the country. We carry out the collection, selection, and germination testing in-house. For details regarding blends and inventory, please contact your nearest branch or sales office. *Please note that due to limited collection quantities, we do not sell domestic seeds exclusively. They are sold as products containing domestic seeds. *This document can be viewed immediately via "PDF Download." Feel free to reach out with any inquiries.

• Slope protection material

What is the maximum height for stacking the large vegetation sandbags "Green Scram"? What is the stacking slope? How do you fill the bags with soil? What is the size after filling with soil? Is it possible to move them after installation? What is different about the mortar and concrete spraying reinforcement fiber "Basalon Fiber" compared to conventional reinforcement materials? How is the workability? Are there any points to be cautious about? We are answering frequently asked questions from customers! 【NETIS Registered Products】 - Large vegetation sandbags "Green Scram" - Mortar and concrete spraying reinforcement fiber "Basalon Fiber" 【NETIS Expired Products】 - Erosion control vegetation mat "Kilket M type" - Erosion control vegetation sheet "Kilket S type" - Soft rock and hard soil vegetation mat "Shirokumatt" - Native species cultivation vegetation mat "Ronket Mosana" - Biodegradable turf (with net) "Ronket Orga" - Thinning wood utilization vegetation mat "Mori no Taro" *This document can be viewed immediately via "PDF Download." Feel free to contact us with any inquiries.

• Slope protection material

Introducing Rontai's NETIS registered products! 【NETIS Registered Products】 - Large vegetation soil bag "Green Scram" - Reinforcing fiber for mortar and concrete spraying "Basaron Fiber" 【Products with Expired NETIS Listing Period】 - Erosion control vegetation mat "Kilket M Type" - Erosion control vegetation sheet "Kilket S Type" - Vegetation mat for soft rock and hard soil "Shiroku Mat" - Native species cultivation vegetation mat "Ronkette Moss Ana" - Biodegradable turf (with net) "Ronkette Orga" - Thinning wood utilization vegetation mat "Mori no Taro" *This document can be viewed immediately via "PDF Download." Please feel free to contact us for inquiries.

• Slope protection material

"Shirokumatt Law Frame Type" that can be easily installed with law frame sizes. Since it is a standard size that fits within the frame, no cutting or processing is required, making it highly efficient for installation! Additionally, it can be expected to have the same greening effect as vegetation substrate spraying work! The palm net attached to the product is highly flexible, allowing it to adhere closely to the ground, making it easier for plants to take root on the slope. You can choose from three standards that fit the frame size◎ 【Features】 ■ Standard size that fits within the frame ■ No cutting or processing required, excellent for installation ■ High flexibility allows for close adherence even on uneven surfaces ■ Three standards available to fit the frame size ■ Greening that is less affected by site conditions -------------------------------------------------- Rontai offers free slope surveys at construction sites. For more details, please contact your nearest branch or sales office. --------------------------------------------------

• Civil Engineering Sheet

Our product, "Green Scram," is a "large vegetative sandbag" that excels in disaster prevention and recovery sites! Equipped with seeds and fertilizers, it allows for disaster prevention measures that consider the landscape! Additionally, since the surface is covered with vegetation, it helps to suppress the degradation of the sandbag itself. It is extremely useful for preparing for localized heavy rain, landslides, and typhoons, as well as for recovery after damage! 【Features】 ■ Disaster prevention measures that consider the landscape ■ Good workability and shortened construction period ■ Suppresses degradation of the sandbag itself ■ Can be installed for long periods ■ Available for purchase from just one piece *For more details, please refer to the PDF materials or feel free to contact us.

• Other earthworks, foundation works, and exterior floors

We are currently offering a "Comprehensive Case Collection" that showcases examples of our vegetation sheets, vegetation mats, and sandbags categorized by their applications, such as disaster recovery. Most examples include site conditions and before-and-after photos, making the effectiveness of our products immediately clear. You can smoothly find the perfect product for your site from our wide range of product offerings. 【Classification of Published Cases】 ■ Rivers and Erosion Control ■ Dams and Reservoirs ■ Farms and Fields ■ Land Development, Parks, and Solar Power ■ Mountain Conservation and Forest Roads ■ Disaster, Recovery, and Prevention ■ General Roads and Highways *This document can be viewed via "PDF Download."

• Sandbags

Our greening materials, such as vegetation sheets and vegetation bags, have primarily been adopted in public works such as road construction, land development, and disaster recovery. In recent years, they have also been used in private projects and landscaping-related sites that incorporate creative ideas. Do you have concerns like "I want to manage my vacation home area myself" or "I want to make park maintenance easier"? We introduce case studies from various sites, including parks, historical sites, campgrounds, golf courses, and locations that emphasize design and landscape, as well as vacation home areas. [Contents (excerpt)] - Private vacation home areas - Glamping facilities - Experience-based facilities - Parks - Resort facilities *For more details, please refer to the PDF materials or feel free to contact us.

• Landscaping materials

There are no greening plants with exactly the same characteristics as "Noshiba," but our company can select seed blends according to your preferences and circumstances. This document includes the characteristics of "Noshiba," construction achievements with short grass blends and three types of Western turf, and proposals for seed blends. Please take a moment to read it. [Contents (partial)] ■ Characteristics of "Noshiba" ■ Methods for growing Noshiba ■ Construction methods using "live turf" of Noshiba ■ Construction methods using "seeds" of Noshiba ■ Consideration of greening methods as alternatives to "Noshiba" *For more details, please refer to the PDF document or feel free to contact us.

• Civil Engineering Method

The soil stabilization vegetation sheet "Ronkette Tsunagreen" uses straw as a covering material, enabling stable vegetation through the excellent water retention and insulation effects of straw, as well as its erosion prevention capabilities. The entire surface is sewn to prevent the scattering of straw during installation, and it also prevents the loss of straw during cutting, reducing waste. It can be installed year-round and maintains a high germination rate even after winter, minimizing the risk of poor germination. 【Features】 ■ Covers the net, achieving high adhesion ■ Prevents seed loss, realizing a high growth promotion effect ■ After plant establishment, the straw decomposes and improves the nutrient status of the soil ■ Market-priced product *We are distributing materials comparing the features of our series product "Ronkette Ace" made with non-woven fabric and the new product. Please check it along with the product catalog from "Catalog Download."

• Civil Engineering Sheet

"Ronkett Tunagreen" is a product that secures straw to a vegetation sheet with machine stitching and covers it with a polyethylene net for reinforcement. Due to the fine stitching intervals, it is less likely for the straw to scatter even in strong winds, and the amount of straw that falls off from the ends when cut is also reduced. It contributes to improving work and management efficiency in the use of straw-based vegetation sheets, which have various features such as erosion prevention, thermal insulation, and water retention. 【Features】 ■ Market-priced product ■ Straw-attached vegetation sheet (without fertilizer bag) ■ Prevents straw scattering due to strong winds ■ Achieves high adhesion through net coverage ■ Reduces loss as straw is less likely to fall off during installation and cutting *For more details, please refer to the materials available for download in PDF format. Feel free to contact us as well.

• Civil Engineering Sheet

"Yashifitto" is a vegetation mat with a coconut net for earth-cutting applications. The coconut net attached to the product is highly flexible, allowing it to closely adhere to the ground even on steep slopes, making it easier for plants to take root. Additionally, as a covering material, it has thermal insulation, moisture retention, and erosion prevention effects, making it suitable for the growth of slow-growing native species and woody plant seeds. With options such as a hexagonal wire mesh and fertilizer bags, you can choose from four grades based on site conditions, accommodating various soil conditions, including areas with a risk of small rockfalls or poor soil nutrients. [Features] ■ Vegetation promotion effect from the coconut net ■ Four grades available based on site conditions ■ Compatible with a wide range of soil conditions *For more details, please refer to the PDF document or feel free to contact us.

• Slope protection material

"RT Net" is a product that can stabilize the spraying base by applying it to the slope before spraying. We offer four types with different mesh sizes and thicknesses. You can choose according to the site conditions such as soil type and spraying material. This product corresponds to the market unit price method for fiber net construction (without fertilizer bags). Please feel free to contact us when you need it. 【Product Lineup】 ■RT Net 1208 ■RT Net 1212 ■RT Net 2520 ■RT Net 2520 (Toughness) *For more details, please refer to the PDF materials or feel free to contact us.

• Other park materials

This document is a collection of construction case studies for solar power generation sites. It includes a total of eight examples of new installations and maintenance repairs, so if you are struggling with slope protection at solar power generation sites, please download and take a look at the materials◎ 【Are you facing any of these issues?】 ■ I would like to know about vegetation methods that prevent material scattering during and after construction. ■ What construction methods can accommodate sandy soil conditions? ■ I want to change to a method that prevents sediment inflow because there is a retention pond below the slope. ■ The site conditions seem unsuitable for plant growth with seed spraying methods. Rontai will solve your problems! *For more details, please refer to the PDF document or feel free to contact us.

• Wall and rooftop greenery

The "Green Scram" that our company handles is a "large vegetation sandbag" that balances landscape conservation and disaster recovery. Since it is equipped with seeds and fertilizers, it promotes plant growth and suppresses the degradation of the sandbag itself. It is very useful for preparing for localized heavy rain, landslides, and typhoons, as well as for recovery after damage. 【Features】 ■ Disaster prevention measures that consider the landscape ■ Good workability and shortened construction period ■ Can be installed for a long time ■ NETIS registered product ■ Available for sale from one piece *For more details, please refer to the PDF materials or feel free to contact us.

• Other earthworks, foundation works, and exterior floors

Rontai uses early-growing vegetation to achieve early greening, primarily for "disaster prevention" and secondarily to create an "environment" that allows the original plants to return more easily. This document summarizes the "basic knowledge of slope greening that you should know" in an easy-to-understand manner, especially during the period when disasters such as heavy rain and typhoons are frequent! [Contents] ■ What is the difference between cutting and filling? ■ What happens if bare slopes are left unattended? ■ Can greening protect slopes from rain? ■ Why do we recommend greening works for slope protection? ■ What kind of greening does Rontai aim for? ■ Construction examples from various sites Our company handles greening materials such as vegetation sheets, vegetation mats, and vegetation bags. We also carry out greening construction, so if you have concerns about slope greening, please feel free to contact us.

• Civil Engineering Method

The large sandbag "Green Scram" is a product that adds vegetation functionality to the "sandbags" used in disaster recovery and temporary construction. The vegetation function helps to suppress the degradation of the product, while also demonstrating the excellent workability unique to large sandbags. 【Features】 ■ Suppresses product degradation with vegetation functionality ■ Promotes greening with a flexible, larger mesh size ■ Structure prevents the inner soil from spilling out ■ Available for purchase from a single unit, allowing for purchases tailored to the scale of the site Please avoid using sand, gravel, rocky soil, concrete debris, mortar waste, etc., for filling. *For more details, please refer to the catalog. Feel free to contact us with any inquiries.

• Unit and other construction

This is a document that provides detailed information about Kilket, which has one of the highest erosion prevention effects among Ron Tai products! The non-woven fabric used in Kilket has a special structure. Rainwater passes through the space between the two layers of non-woven fabric, quickly draining excess moisture! This prevents rainwater from accumulating on the surface of the slope. Additionally, examples are provided to explain where Kilket can be useful! ◎ Sites with sandy soil that is prone to erosion ◎ Sites concerned about sudden heavy rain ◎ Sites with partial spring water ◎ Sites considering alternatives to vegetation substrate spraying, etc... -------------------------------------------------------------------------------- Ron Tai offers free slope surveys at construction sites. For more details, please contact your nearest branch or sales office. --------------------------------------------------------------------------------

• Planting work

The "Biodegradable Double Lanket Anaconda" is a naturally decomposing product made from biodegradable plastic netting. When maintaining the slope after installation, the entanglement with grass cutting machines is significantly reduced. It provides nutrients for a longer period than fertilizer bags and is a vegetation mat for greening cut slopes that forms stable greenery. Additionally, since a soil amendment with high moisture retention is incorporated, the fertilizer components dissolve slowly, eliminating concerns about concentration issues that often arise with large amounts of fertilizer application. *For more details, please refer to the catalog or feel free to contact us. --------------------------------------------------- Rontai offers free slope surveys at construction sites. For more details, please contact your nearest branch or sales office. ---------------------------------------------------

• Civil Engineering Sheet

Would you like to suppress weeds with centipede grass and reduce maintenance costs? ◇ Centipede Grass By incorporating centipede grass, which is expected to have weed suppression effects through its creeping stems and allelopathic properties, it becomes possible to manage it extensively after establishment. While management is necessary until turf formation, straw will help prevent erosion. * Centipede grass is a low-growing variety with a height of 10 to 20 cm. The straw-covered turf "Ronquet Straw" uses natural straw as a covering material, creating an environment suitable for plant growth through the insulation, moisture retention, and erosion prevention effects of straw, effectively protecting embankments. It balances reasonable pricing with high functionality and has numerous implementation records in road construction, land development, and field maintenance projects. Additionally, it contributes to environmental conservation as it is decomposed by soil microorganisms.

• Slope protection material

We have plans for spraying work, but we are struggling with locations in the mountains where machinery cannot access... We want to green a small area with a small-scale project... Do you have similar concerns? If you are facing issues at a slope greening construction site, please use this information to help you select the appropriate method. 【Contents】 - Features and benefits of vegetation sheets and mats - Types of photos needed for spraying work and vegetation sheet/mat work - Recommended vegetation sheet and mat products *This document can be viewed immediately via "PDF Download." Please feel free to contact us with any inquiries.

• Slope protection material

This catalog introduces examples of cases used at pond sites. In addition to details such as construction conditions and quantities, it includes photographs showing the progress of greening after construction. Free case study collection!!! [Featured Cases] ■ Project Name: FY 2010 Tsukoe District Pond Improvement Project, Section 1 (Yamagata Prefecture) ■ Conditions: Embankment (hard soil) ■ By Use: Dam/Pond ■ Construction Quantity: 1000m² *For more details, please refer to the catalog or feel free to contact us. ---------------------------------------------------------------------- Rontai offers free slope surveys at construction sites. For more information, please contact your nearest branch or sales office. ----------------------------------------------------------------------

• Planting work

We would like to introduce a construction case using the vegetation sheet "Kilket S-type," which allows for greening while preventing erosion. In addition to details such as the construction conditions and quantities of Kilket S-type used in solar power plant construction and road improvement projects, we have included photos documenting the greening process after construction. For a limited time, we are offering a free collection of case studies! [Featured Case] ■ Project Name: National Route 322 Kawarudai Bypass Road Improvement (Fukuoka Prefecture) ■ Conditions: Embankment (clay soil) ■ Application: General road ■ Construction Quantity: 300m² *For more details, please refer to the catalog or feel free to contact us. -------------------------------------------------------------------------------- Rontai offers free slope surveys at construction sites. For more information, please contact your nearest branch or sales office. --------------------------------------------------------------------------------

• Planting work

By using both fast-acting and slow-acting fertilizers, we introduce a case study utilizing the vegetation sheet "Ronkette Ace Jeep," which is expected to provide efficient fertilization effects. This includes details about the construction conditions and quantities of Ronkette Ace Jeep used in projects such as agricultural land improvement and industrial park development, along with photographs documenting the greening process after construction. Currently, we are offering a free collection of case studies! [Featured Case] ■ Project Name: Industrial Park Development Project, First District Construction Work (Fukushima Prefecture) ■ Conditions: Embankment (sandy soil) ■ Purpose: Development/Park ■ Construction Quantity: 4,750 m² *For more details, please refer to the catalog or feel free to contact us. -------------------------------------------------------------------------------- Rontai offers free slope surveys at construction sites. For more information, please contact your nearest branch or sales office. --------------------------------------------------------------------------------

• Soil improvement material

Vegetation sandbags in a rectangular shape, ideal for preventing erosion on slopes. We would like to introduce examples of construction using the "Makura Green Bag." In addition to details such as the construction conditions and quantities of the Makura Green Bags used in sidewalk improvements and restoration forestry projects, we have included photos showing the progress of greening after construction. For a limited time, we are offering a free collection of case studies! [Featured Case Studies] ■ Project Name: FY 2016 Restoration Forestry Project (Kagoshima) ■ Conditions: Other ■ Use: Forestry and forest road ■ Quantity: 200 bags *For more details, please refer to the catalog or feel free to contact us. —————————————————————————————————— Rontai offers free slope surveys at construction sites. For more information, please contact your nearest branch or sales office. ——————————————————————————————————

• Sandbags

This is a catalog introducing the Killket series, which has one of the highest erosion prevention effects among Longtai products. The non-woven fabric used in Killket has a special structure. Rainwater passes between the two layers of non-woven fabric, quickly draining excess moisture! This prevents rainwater from accumulating on the slope surface. The catalog includes results from erosion tests conducted using artificial rainfall. If you want to protect slopes before heavy rain... this is a product we highly recommend for those facing such concerns! -------------------------------------------------------------------------------- Longtai offers free slope surveys at construction sites. For more details, please contact your nearest branch or sales office. --------------------------------------------------------------------------------

• Planting work

We would like to introduce a construction case using the vegetation mat "Kilket M Type," which allows for greening while preventing erosion. This includes details such as construction conditions and quantities for the Kilket M Type used in civil engineering and road improvement projects, along with photographs showing the progression of greening after construction. For a limited time, we are offering a free collection of case studies! 【Featured Case】 ■ Project Name: Comprehensive Watershed Disaster Prevention (River) Project〈Kagoshima Prefecture〉 ■ Conditions: Cut soil (sandy soil) ■ Application: River and sediment control ■ Construction Quantity: 220m2 *For more details, please refer to the catalog or feel free to contact us. ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ Rontai offers free slope surveys at construction sites. For more details, please contact your nearest branch or sales office. ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐

• Planting work

We would like to introduce a construction case using "Ronket Keeper," which demonstrates the high erosion prevention effect of straw and non-woven fabric. In addition to details such as the construction conditions and quantities of the Ronket Keeper used in disaster recovery and road improvement projects, we have included photos showing the progress of greening after construction. Currently, we are offering a free collection of case studies! 【Featured Case】 ■ Project Name: Road Improvement Work at the Kanmitake Work Section of Prefectural Road Iino Matsuyama Miyakonojō Line (Miyazaki Prefecture) ■ Conditions: Embankment (Clayey Soil) ■ Application: Expressway ■ Construction Quantity: 9,500 m² *For more details, please refer to the catalog or feel free to contact us. -------------------------------------------------------------------------------- Rontai offers free slope surveys at construction sites. For more information, please contact your nearest branch or sales office. --------------------------------------------------------------------------------

• Soil improvement material

We would like to introduce examples of construction using the environmentally friendly, naturally decomposing turf "Ronkettoga." In addition to details such as the construction conditions and quantities of Ronkettoga used in disaster recovery and road improvement projects, we have included photographs showing the progress of greening after construction. For a limited time, we are offering a free collection of case studies! [Featured Case] ■ Project Name: Nakayama-Kan East (30) No. 1 Haseike Renovation (Part 2) Project [Ehime Prefecture] ■ Conditions: Embankment (sandy soil) ■ By Use: Dam / Reservoir ■ Construction Quantity: 578m² *For more details, please refer to the catalog or feel free to contact us. -------------------------------------------------------------------------------- Rontai offers free slope surveys at construction sites. For more information, please contact your nearest branch or sales office. --------------------------------------------------------------------------------

• Soil improvement material

We would like to introduce a construction case using the high water retention effect water-absorbent bag attached turf "Lonkett Spider." In addition to details such as the construction conditions and quantities of Lonkett Spider used in disaster recovery and road improvement projects, we have included photos documenting the greening process after construction. Get a free case study collection now! 【Featured Case】 ■ Project Name: Opening of Hayashi Road Shiozuru Line (Nagasaki Prefecture) ■ Conditions: Cut earth (sandy soil) ■ Purpose: Erosion control / forest road ■ Construction Quantity: 610m² *For more details, please refer to the catalog or feel free to contact us. -------------------------------------------------------------------------------- Rontai offers free slope surveys at construction sites. For more information, please contact your nearest branch or sales office. --------------------------------------------------------------------------------

• Soil improvement material

"Basalon Fiber" is a reinforcing fiber that exhibits high crack prevention effects when mixed with mortar or concrete, protecting slopes. It is made by melting natural mineral basalt at high temperatures and processing it into fibrous form using special technology. In addition to excellent heat resistance, it also possesses salt and alkali resistance, allowing it to maintain strength without corrosion in coastal areas and special soil sites. 【Features】 ■ Reduces environmental impact as it is primarily made from natural minerals ■ Blends well with concrete, resulting in a smooth surface finish ■ Reduces disposal costs for rebound and wash water, as well as future industrial waste treatment costs ■ Lightweight, with excellent dispersibility and flexibility, allowing for smooth construction ■ Can enhance compressive strength *For more details, please refer to the PDF document. Feel free to contact us with any inquiries.

• Reinforcement and repair materials

This document presents examples of the installation of our vegetation sheets and vegetation mats, focusing on the soil quality and site conditions. In almost all cases, we include site conditions, before-and-after photos, and the names and images of the products used, making the effects of the products clear at a glance. [Soil Types of Featured Sites] - Alkaline improved soil - Sandy soil - Hard soil / soft rock - Volcanic ash soil - Shirasu soil - Clayey soil, etc. *This document can be viewed via "PDF Download."

• Road construction

This document presents case studies of the vegetation sheets and mats provided by our company, categorized by "construction conditions" such as soil properties and surrounding environments, as well as "purposes of construction" like disaster recovery and forest conservation. Almost all case studies include site conditions and photos before and after construction, clearly demonstrating the effectiveness of the products. You can smoothly find the perfect product for your greening project from our wide range of product offerings. 【Classification of Published Case Studies】 ■ Soil Properties (alkaline improved soil, hard pumice, strongly acidic soil, etc.) ■ Site Environment (snowy cold regions, areas with spring water, coastal areas, etc.) ■ Surrounding Environment (national parks, areas around ponds, river embankments, etc.) ■ Purpose of Greening (disaster recovery, weed control, etc.) ■ Maintenance of Ecosystems (greening with biodegradable products, etc.) *This document can be viewed via "PDF Download."

• Slope protection material

We have plans for spraying work, but we are struggling with locations in the mountains where machinery cannot access... It's a small-scale project with a limited area, but we want to green it... Do you have any such concerns? If you are facing issues at a slope greening construction site, please use this information to help you choose a method. 【Contents】 ◎ A case where the design was changed from seed spraying to vegetation mat work, resulting in full greening. ◎ A case where the design was changed from vegetation substrate spraying (t-3cm) to vegetation mat work, resulting in full greening. ◎ A case where, as a result of an environmental assessment, the design was changed from seed spraying to vegetation sheets to prevent erosion. And more! We have other cases published as well! *This document can be viewed immediately via "PDF Download." Please feel free to contact us with any inquiries.

• Slope protection material