[Legal Amendment Information × Service Announcement] A mask fit test will be required for metal arc welding and similar operations.

Essential for manufacturing that considers environmental concerns and complies with regulations, capable of various measurements/analyses - also selected as a "Zero Emission Challenge Company" by the Ministry of Economy, Trade and Industry.

Our company is in the construction industry, yet we have developed resource exploration, geological survey, and drilling technologies rooted in the mining industry. We have also provided various applied technologies as a resource and environmental consultant. In the environmental field, we can offer a consistent response from investigation to analysis and countermeasures for soil and groundwater contamination. Additionally, we can propose environmental measurements and countermeasures for production sites. In the energy sector, we are working to promote and disseminate geothermal utilization systems that excel in environmental and energy-saving properties. We are involved in numerous large-scale projects, and in geothermal power generation, we have been selected as a "Zero Emission Challenge Company" by the Ministry of Economy, Trade and Industry, which aims to innovate for the realization of a decarbonized society. 【Business Activities】 ■ Resource Consulting ■ Environmental Consulting ■ Energy Consulting *For more details, please refer to the PDF document or feel free to contact us.

• District heating and cooling/heat source system
• Geological Survey

Attendance management is something that is expected of every company and should be addressed. When asked, "Are you doing it?" it might be more concerning to hear, "Are you doing it correctly?" which could make some responsible parties feel anxious. You may be using time cards for clocking in, but are unsure about overtime calculations. You might be having employees input data into Excel, but how does that stand in terms of legal compliance? You may be managing paid leave on paper, but there’s no room for double-checking. Employee resignations may be ongoing, but could this be due to overwork...? Why not review the various pros and cons of different attendance management methods and revisit the important aspects of attendance management from the "basics"?

Stamp duty, which can be a significant cost in contract operations... By switching to electronic contracts, you can reduce this cost. PDF files of contracts used in electronic contracts do not fall under taxable documents according to the Stamp Duty Act. Therefore, by switching to electronic contracts, the need for physical stamps is eliminated. ◆ "Electronic Contracts" Without Worrying About Stamp Duty When using electronic contracts, there is no stamp duty. Electronic contracts can prove "authenticity" and "non-repudiation" through electronic signatures using electronic certificates and timestamps from certified service providers. * Electronic Signature: Ensures authenticity through email addresses, identification, and certificates of registered matters. * Certified Service Provider Timestamp: Proves that the document "existed" at that time and in that state, confirming that it has "not been tampered with." ◆ For inquiries about electronic contract services, contact paperlogic! "paperlogic Electronic Contract" is a cloud service specialized in electronic contracts and document management. It can be used not only for managing estimates and invoices but also for electronic contracts using witness-type (equivalent to a registered seal) and party-type (equivalent to a personal seal). Additionally, we offer consulting plans for DX, so please feel free to contact us.

We will introduce the implementation results of the sensor technology developed by the Hotron Group, which has been cultivated over more than half a century, through customer case studies. In addition to automatic door sensors, we also offer a wide range of vehicle detection sensors and nursing/care sensors. We have many implementation examples available, so please take a look at the case study page.

Castem Co., Ltd. will exhibit at "Mechatrotech Japan 2025," which will be held at Port Messe Nagoya from October 22 (Wednesday) to October 25 (Friday), 2025. In the themed exhibition zone titled "Processing Techniques Supporting Healthcare," we will showcase a miniature model of a laparoscopic surgical instrument (forceps) that has been meticulously crafted. In collaboration with ROKKO Smart Technology Co., Ltd., we will demonstrate the mold processing of the finest components of this miniature model using the ultra-high precision high-speed micro-machining machine "Android3." Attendees will have the opportunity to directly experience the "technological prowess embedded in the microscopic world." We invite you to stop by during this special occasion! 【Exhibition Overview】 Date: October 22 (Wednesday) to October 25 (Saturday), 2025, 10:00 AM to 5:00 PM Venue: Port Messe Nagoya (2-2 Kinjo Futo, Minato Ward, Nagoya City) Exhibition Location: 3rd Exhibition Hall, Concept Zone A Content: Organizer's planned exhibition "Machining Live! Processing Techniques Supporting Healthcare - Learning Success Tips from Different Industries -" - Display of a laparoscopic surgical set approximately 95 mm in length - Demonstration of mold processing using Android3 and seminar - Display of other miniature products, MIM products, digital cast products, etc.

At the Osaka-Kansai Expo, the "K.L.V" (Kinetic Light Vision) displayed at the Shiga Prefecture booth in the Kansai Pavilion won the Gold Award in the Entertainment Space category of the "Japan Spatial Design Award 2025." For "K.L.V," our control controller was used to manage the translucent acrylic spheres suspended by wires. The control controller achieved control of 450 motors connected via EtherCAT at a cycle of 4 milliseconds. There is an actual video in the related links section. https://prtimes.jp/main/html/rd/p/000000018.000026058.html