Scheduled to exhibit at N-PLUS (Tokyo Big Sight)

The durability and heat resistance of non-stick, high-release plating Tef-Lock have been significantly improved, making it possible to use it at 300℃!

- Our unique high-performance composite surface treatment combines the high hardness, wear resistance, and electrical conductivity of hard chrome plating with the non-stick properties, lubricity, low friction, and release properties of fluororesin. - Tef-Lock α maintains a stable surface without decomposition of the resin component even in high-temperature environments of 300°C, demonstrating excellent durability (conventional Tef-Lock has a heat resistance temperature of around 250°C). - In friction tests at high temperatures of 300°C, Tef-Lock α shows 2.4 times the durability of conventional Tef-Lock and approximately 7 times the durability compared to typical nickel plating combined with fluororesin.

• Resin mold
• Food Conveyor Equipment
• Filling and bottling machines

We have successfully achieved high corrosion resistance that significantly exceeds 24 hours in the Cass test through the hybridization (composite) of plating films and inorganic materials!

Hybrid chrome is a technology that enhances the functional properties of chrome plating by hybridizing (compositing) chrome plating films with inorganic materials. Our company has successfully achieved corrosion resistance that significantly exceeds 24 hours in the Cass test through hybridization with glassy materials. By sealing the micro-cracks, which are a weakness of chrome plating, corrosion resistance has been greatly improved, and at the same time, it also prevents the intrusion of foreign substances into the cracks.

• plastic

Achieve maintenance of lubricity and improved load-bearing capacity and durability with micro-crack plating + PTFE!

We have a product called "Tef-Lock," which is our original plating that incorporates PTFE into hard chrome plating. This is a composite surface treatment that combines the high hardness and wear resistance of chrome plating with the low friction and lubrication properties of PTFE. However, in high-load environments where chrome plating may wear away, it has been difficult to maintain low friction and lubrication. However, we have developed "Tef-Lock Fine" by impregnating PTFE into our original Cro-Fine (high-hardness micro-crack chrome plating) coating, which solves these issues. 【Features】 ■ Hardness increased compared to conventional Tef-Lock (HV850 → HV900) ■ Increased crack density and higher PTFE content compared to conventional Tef-Lock ■ Maintains low friction under high loads and exhibits excellent wear resistance *For more details, please refer to the related links or feel free to contact us.

• Surface treatment contract service
• Other metal materials

Are you having trouble with cracks in the plating transferring onto the mirror-finished rolls for film molding? It can be improved with crack-free plating.

Hard chrome plating has excellent hardness with a hardness value of HV750 to 900, but it has the issue of cracks (fine fissures) in the coating, which means that no matter how much the surface is polished to a mirror finish, the cracks can transfer to the product. Our company has long had the technology for a non-crack chrome plating called "Cloamore." The hardness can reach up to HV1800 through heat treatment at temperatures between 200°C and 600°C, and due to being crack-free, it has excellent corrosion resistance. However, since the coating can only be applied as a thin film with a thickness of up to 5μ, it has not been applicable to mirror surface rolls until now. However, we have developed a "Super Mirror Crack-Free Roll" that solves these problems by forming a special two-layer structure. 【Features and Effects】 ■ Achieves a super mirror crack-free surface with a roughness of Ry0.05 or less. ■ Since Cloamore is on the outermost layer, it has a hardness of about HV1200, which is approximately 1.5 times that of hard chrome plating, making it less prone to scratches due to its excellent wear resistance. ■ Being crack-free enhances corrosion resistance and reduces resin accumulation on the roll surface. It is also expected to improve anti-fouling properties and non-contamination effects. *For more details, please feel free to contact us.

• Contract manufacturing
• Surface treatment contract service
• Other metal materials

Further improve the hardness and corrosion resistance of hard chrome plating with micro-crack plating!

Typically, hard chrome plating is performed using a bath made of anhydrous chromic acid and sulfuric acid, referred to as a "Sargent bath," dissolved in water. Its hardness ranges from HV750 to 900, which is quite excellent, but even so, under harsh usage conditions, wear of the plating is unavoidable. Additionally, the cracks (fine fissures) present in the hard chrome plating layer can expand when heat is applied, which can be problematic depending on the application. However, our company has developed "CRO-FINE," which solves these issues by improving the components of the plating bath. 【Features】 ■ Hardness is excellent at HV950 to 1000 ■ Compared to typical hard chrome plating, the extent of crack expansion due to heating is smaller ■ Although there are many cracks, they are narrow and shallow, resulting in minimal penetration to the substrate and excellent corrosion resistance ■ Not only is it excellent in wear resistance, but it also reduces the wear amount of the opposing material *For more details, please refer to the related links or feel free to contact us.

• Other metal materials

The hardness is approximately twice that of hard chrome plating (Hv1800)! Introducing the world's first amorphous chrome plating.

The world's first amorphous chrome "Cloamore" is a chromium-based alloy coating that contains 2-4% carbon, boasting ultra-high hardness and excellent wear resistance.

• Other semiconductor manufacturing equipment
• Surface treatment contract service

Functional plating! We propose a special surface treatment technology for the maintenance of heat sealers.

"Teff Rock" is a special surface treatment technology that impregnates PTFE into micro-cracks of hard chrome plating. Are you having trouble with the maintenance of heat sealers? It complies with the standards for equipment and packaging based on the Ministry of Health, Labour and Welfare Notification No. 370, which includes food and additives. Therefore, it can be used in applications where food comes into direct contact. We offer free samples and can accommodate test applications. Please feel free to contact us. 【Features】 ■ Unlike Teflon coatings, it does not peel off in a short period of time. ■ It has a tremendous effect in preventing resin adhesion and stringing. ■ It prevents scratches on the sealing surface. ■ Heat resistance temperature is 250°C. ■ For resins with a high melting point, a heat-resistant version that can withstand over 300°C is also available. *For more details, please refer to the PDF document or feel free to contact us.

• Other surface treatment equipment
• Surface treatment contract service

As the new year begins, I would like to extend my heartfelt congratulations on your continued prosperity. I sincerely appreciate your exceptional support throughout the year. This is the STJ Group (Santelecom Japan, STJ Rentec). Now, I am pleased to announce that we will be opening our "Transceiver & Smartphone Rental Shop" simultaneously at three locations nationwide on January 26 (Monday)! ■ List of Services to be Offered - Same-day pickup/return of rental equipment - Usage explanations and demonstrations of rental equipment - Wireless solutions consultation desk - Mobile BPO service counter As a special promotion to celebrate the opening of the rental shop, we are currently running a special price campaign for picking up rental equipment at the shop! For more details, please contact us!

【Notice of Year-End and New Year Holidays】 Thank you very much for your continued support. Our company will be closed for the year-end and New Year holidays as follows: Holiday Period: Saturday, December 27, 2025 – Sunday, January 4, 2026 Please note that inquiries and orders received during the holiday period will be addressed sequentially starting from Monday, January 5, 2026. We apologize for any inconvenience this may cause and appreciate your understanding.

We would like to inform you about our participation in the IT Trend EXPO 2026 Spring. 《Exhibition Information》 With the concept of "New encounters will change tomorrow's work," one of the largest online exhibitions in the industry will be held. NTT TechnoCross will exhibit in the Human Resources Comprehensive category. We have prepared numerous discussions and sessions featuring special guests who are active on television, allowing even those who are usually busy to efficiently gather information on products and services related to IT and DX. Additionally, the first 10,000 participants will receive a 500 yen Amazon gift card. Please apply early. 《Exhibition Overview》 March 3 (Tuesday) to March 7 (Saturday), 2026, online (free: pre-registration required) 《Participation Application》 https://it.expo.it-trend.jp/key/opl7kgdj *Please apply (free) from the "Receive Ticket / Proceed to Participation Registration" link at the above URL.

The TV commercial "What Will You Do in the New Era?" featuring model and actress Akane Horita will begin airing on December 26, 2025. This work expresses the desire of Tokei Densan to respond to the diverse needs of various industries in today's society, where new technologies, such as the expansion of the AI market, are competing with each other, and to nurture and blossom our customers' futures. Please pay attention to Akane Horita, who is dressed in stylish outfits, listening to the concerns of the target audience and offering support. # CM Overview Title: "What Will You Do in the New Era?" (30 seconds / 15 seconds) CM URLs 30 seconds: https://youtu.be/y_lMs0HRj3w 15 seconds: https://youtu.be/egpzMfh8Kok

Thank you very much for your continued support. We would like to inform you that our company will be closed for the year-end and New Year holidays as follows: Year-end and New Year holiday period: December 27, 2025 (Saturday) to January 4, 2026 (Sunday) We apologize for any inconvenience this may cause and appreciate your understanding. *Please note that inquiries made through our website will also be responded to after January 5, 2026 (Monday).