On June 10, 2014, the Shonai Shiraishi Mine received an award for mine safety.

Mining, manufacturing, processing, and selling of calcium carbonate and natural zeolite.

Nitto Funka Shouji Co., Ltd. has been engaged in the mining, manufacturing, processing, and sales of calcium carbonate (CaCO3) since its establishment. In Japan, which has limited resources, limestone is considered a unique resource, and Nitto Funka Shouji Co., Ltd. owns particularly valuable pure white crystalline limestone mines at each of its factory locations. The high quality and reserves of this limestone are the company's greatest pride and its most significant asset. Furthermore, a passionate team of research and technology has created the "superfine particle NS," which can be said to have established the "heavy calcium carbonate" industry in contrast to "light calcium carbonate." Following this, the company has developed various new products, including surface treatment products such as the "Nobelite NCC" series, granulated products like the "Carpet" series, and submicron "Nitrex" series products that rival colloidal calcium carbonate, consistently leading the industry as a top manufacturer and a comprehensive producer of calcium carbonate, boasting quality, technology, and quantity both domestically and internationally. 【Products Offered】 ○ Calcium Carbonate ○ Natural Zeolite For more details, please contact us or download the catalog.

• stone
• Tile work

Aluminum hydrous silicate minerals that contain water molecules as a main component in the form of crystalline water within their structure.

The name "zeolite" is derived from the Greek meaning "boiling stone" and is also referred to as "boiling stone" in another name. Zeolite is a hydrated aluminum silicate mineral that contains water molecules (H2O) as a main component in the form of crystal water within its structure. When heated suddenly, it bubbles and melts, appearing as if it is boiling, which is how it got its name. The crystal water in zeolite exists as water molecules within the three-dimensional network structure of zeolite, and is specifically called "zeolite water." Even when dehydrated by heating, the structure of zeolite is not destroyed, and the areas where crystal water was present remain as cavities, resulting in a sponge-like structure that has the property of strongly adsorbing gases and moisture again. 【Features】 ○ Even when dehydrated by heating, the structure of zeolite is not destroyed, and the areas where crystal water was present remain as cavities, which have the property of strongly adsorbing gases and moisture again. ○ The cation exchange capacity is not affected by the surrounding environment (such as pH) and has the property of sustaining that capacity for a long time. ○ It is an effective and beneficial material for purifying the earth, water, and air by adsorbing pollutants. For more details, please contact us or download the catalog.

• stone
• Airport facilities
• Water Supply Facilities

Calcium carbonate for additives in rubber and fillers.

Used as a base material for tablets, chalk, ceramics, and paper manufacturing. It is also used as an additive in rubber and fillers, and is included in erasers and toothpaste to utilize its abrasive properties. It is recognized for use as a cosmetic ingredient and food additive. It is used in plastics, rubber, bathtubs, etc.

• Exterior tiles
• Interior and exterior tiles
• Tile work

Mineral "zeolite" that adsorbs pollutants.

The name zeolite is derived from the Greek word meaning "boiling stone" and is also referred to as "boiling stone." It has the property of strongly adsorbing gases and moisture. As a mineral of the 21st century, zeolite is an effective and beneficial material for purifying the earth, water, and air, and it will continue to attract more attention in the future.

• stone
• Tile work

In recent years, with the increasing push for DX (digital transformation) and valuable feedback from all users in the field, we will be fully renewing "Compass PLUS." The new Compass PLUS will leverage its traditional strengths while completely revamping its design, functionality, and usability, thereby further enhancing its value in practical use. The official release is as follows, so please wait a little longer until then. 1) Improved visibility and operability 2) Enhanced intuitiveness 3) Streamlined information sharing These are the main points of improvement, and it will be available starting December 16, 2025. For an overview of the renewal, please download the materials. We are also planning an online briefing session, so please download the materials for more details as well. Renewal date: Tuesday, December 16, 2025 Temporary suspension period: Monday, December 15, 2025, 17:00 – 19:00 *Due to the renewal, data updates for observation devices (wave height, weather, water level, noise and vibration) will be suspended during the temporary suspension period. However, viewing of forecast information and other various information will still be possible as usual.

In recent times, there has been a growing interest in infection control measures and facility hygiene management. Our company offers non-contact sensor products that are recommended for commercial facilities, food factories, and nursing and caregiving facilities. 【Sensors for Automatic Doors】 ● Light Touch Sensor HA-T401 … When you wave your hand in front of the automatic door, the sensor detects the movement and opens or closes the door. This is recommended for making doors with touch switches non-contact. ● Hand Wave Sensor PF-R5, PF-U2, DHS-1 … Opens and closes the automatic door by waving your hand in front of the sensor. ● Foot Switch PF-01S/01D/03S/05 … Opens and closes the automatic door by placing your foot in the opening. 【Access Control System】 ● Face Recognition + Unmanned Temperature Measurement DS Series … Allows for face recognition along with mask detection and body temperature measurement simultaneously. ● Automatic Disinfectant Spray Dispenser PHW-03B … Automatically sprays disinfectant when you wave your hand in front of the sensor. 【Nursing and Care Sensors】 ● Infrared Bed Exit Sensor "Just Place It Pole-kun" … This bed exit sensor is installed next to the bed and notifies via nurse call when the subject enters the detection range. ◎ For more details, please download the catalog or contact us.

To customers considering the introduction of vehicle detection sensors for parking lot construction, design, or management: Are you facing any challenges with current issues or selecting the right sensors for parking management? Hotron offers free materials that explain how to utilize vehicle detection sensors and the benefits of their introduction! ▽ Here is the lineup of materials ◉ Vehicle Detection Sensor Basic Guide This guide focuses on the challenges and solutions in parking lot operations, introducing the overview of vehicle detection sensors. ◉ Key Points for Introducing Vehicle Detection Sensors This material discusses the benefits of introduction based on installation locations and specific challenges. ◉ Case Studies of Vehicle Detection Sensor Implementation This document presents the challenges before implementation and the results after introduction. For more details, please download from our website and check it out. https://www.hotron.co.jp/download/

We will be exhibiting at the only comprehensive and cross-sectional international convention in the marine field in Japan, "Techno-Ocean 2025." In this exhibition, we will introduce a wide range of specialized survey services related to offshore wind power generation projects, including wind and sea condition surveys, O&M, sediment surveys, and fishing ground environmental monitoring. We will also showcase marine surveys and seagrass bed investigations using marine robots such as autonomous surface vehicles (ASVs) and underwater drones, as well as the collection of dead fish in aquaculture operations.

The energy policy promoted by the government has finally made a significant shift from "quantity to quality." The previous large-scale introduction of renewable energy policies relied on inexpensive foreign-made panels, leading to the chaotic installation of mega-solar farms across Japan's land, which created environmental, landscape, and waste issues. As a result, Japan's energy self-sufficiency rate remains at a mere 13%, and even with the advancement of renewable energy, "import dependence" has not been resolved. In light of this reflection, the focus moving forward will be on "developing domestic energy technologies" and promoting "self-consumption type renewable energy." Among these, perovskite solar cells are lightweight, highly efficient, and offer great flexibility in installation, making them a trump card for "decentralized renewable energy" that can be easily retrofitted onto building walls and roofs. Kenneth Energy Development Co., Ltd. is developing a "selective self-consumption solar power generation system" that utilizes domestic panels and perovskite technology. Based on a track record of 83 projects nationwide and a total construction cost of 908.4 billion yen, it supports the industry's "energy independence." Now, renewable energy is entering an era of "security infrastructure."