Announcement of the start of handling the low-concentration ozone generator Tamuratec "O3 Premium".

No need for chemicals! Disinfection and deodorization with the power of plasma ozone! Proven track record with over 1,000 ambulances nationwide equipped with the same model.

◆High disinfection capability with the power of plasma ozone The low-concentration ozone generator O3 Premium removes not only viruses and airborne bacteria but also adherent bacteria and odors at their source. The oxidative power of ozone destroys and decomposes bacterial DNA, preventing the emergence of resistant bacteria. ◆Powerful deodorization of adhered odors with plasma ozone Thanks to the strong power of ozone, it effectively addresses components that are difficult to treat with external methods, such as pet odors, mold odors, sewage smells, and sweat/body odors. Since ozone does not spray chemicals, it can deodorize embedded odors without wetting carpets or wallpaper. For more details, please visit our company website. 【Features】 ■ Electricity cost is approximately 5.7 yen per day ■ Ozone concentration is easily adjustable with a dial ■ Can be easily used by anyone with just one switch ■ Installation is complete with just one outlet; lightweight design at 1400g *For more details, please refer to the PDF materials or feel free to contact us.

• Ozone Generator
• Air purifiers

【STOP Infectious Disease Award Best Award Winner】Eliminates bacteria and viruses aerosolized with ozone! Always maintain a clean indoor environment with this one device.

The "BT-180H" is an ozone air purifier that disinfects airborne and surface bacteria in indoor spaces and decomposes the substances that cause odors. The newly developed coil-type ozone generator can switch the amount of ozone produced, boasting a maximum output of 600mg/h in an unlimited environment. Additionally, in human mode, it generates a safe low concentration of ozone air at around 0.1ppm, allowing for gentle disinfection and deodorization of the indoor space. 【Features】 ■ Ozone air disinfects airborne and surface bacteria indoors ■ Decomposes substances that cause odors ■ A large amount of granular activated carbon is filled to adsorb odor-causing substances and harmful substances in the air ■ Titanium dioxide coating on the aluminum honeycomb filter reacts with UV light to generate OH radicals that oxidize and decompose harmful substances in the air *For more details, please refer to the PDF document or feel free to contact us.

• Ozone Generator
• Air purifiers

Multi-hybrid method of ozone and ultraviolet! Powerful deodorizing and sterilizing power hidden in a compact body.

"Lyon 3.0" is an ozone deodorization and sterilization device that allows for efficient deodorization and disinfection of your room with just one button, making it easy to operate without confusion. It is equipped with all the necessary technology for space disinfection and deodorization. Since it uses a UV lamp method that does not directly emit ozone, it can be used by those who are sensitive to the unique smell of ozone. For more details, please visit our company website. 【Features】 ■ Double deodorization and disinfection with UV-C (wavelength 253.7nm) and OZONE (wavelength 184.9nm) ■ Efficient internal airflow in a compact body ■ Easy to use for anyone with just one switch ■ Suitable for those who are sensitive to the smell of ozone due to its multi-hybrid method *For more information, please refer to the PDF document or feel free to contact us.

• Ozone Generator
• Air purifiers

CT is equipped with a calculation function! By quantifying the sterilization and deodorization effects, we ensure reliable processing according to the purpose.

We would like to introduce our high-performance ozone generation devices, "Orakurink CT/Orakurink II." The "Orakurink CT" features a CT value accumulation function that clearly shows deodorization and sterilization effects, and it is compact and easy to carry. The "Orakurink II" is equipped with an analog timer and a digital weekly timer, allowing for operation tailored to various specifications and uses. It can also be connected to the Orakurink CT to shorten processing time. 【Features of Orakurink CT】 ■ Quantifies the treatment effect with ozone gas (visualization of effectiveness) ■ Capable of repeatedly reproducing the same effect ■ Equipped with an ozone gas concentration meter and elapsed time display function ■ Compact and easy to carry ■ Generates 2000mg/h of ozone gas and has a circulation fan of 180m3/h *For more details, please refer to the PDF materials or feel free to contact us.

• Ozone Generator

Speed deodorization and disinfection! Thanks to the high-performance ozone lamp (quartz tube), there is no generation of NOx, and it is low cost.

The "Handy Kurin" is a high-performance ozone generator that uses ozone (O3) to combat bacteria, prevent mold, and eliminate tobacco and pet odors. Thanks to its high-performance ozone lamp (quartz tube), it generates no NOx and is low-cost. The built-in fan forces indoor air circulation, deodorizing and disinfecting the space. Equipped with a timer as standard, it is user-friendly and convenient, effective for areas up to about 20 tatami mats in size. Additionally, it is easy to carry and can be used in various locations. 【Features】 ■ High-performance ozone lamp (quartz tube) generates no NOx and is low-cost ■ Built-in fan forces indoor air circulation, deodorizing and disinfecting ■ Standard timer makes it user-friendly and convenient ■ Effective for areas up to about 20 tatami mats in size ■ Easy to carry *For more details, please refer to the PDF document or feel free to contact us.

• Ozone Generator

Portable and rechargeable via USB! It can generate highly effective ozone water for disinfection using only purified water or tap water.

"L Kurin Minnie" is an ozone water spray equipped with a super compact ozone water generation unit. It can generate highly effective ozone water for disinfection using only purified water or tap water. There is no need to stock alcohol or sodium hypochlorite, so it can be used anytime. The ozone in ozone water decomposes immediately into oxygen and returns to water, so no post-treatment such as wiping is necessary. 【Features】 ■ Free of raw materials ■ Can generate highly effective ozone water for disinfection using only purified water or tap water ■ Free from the need to stock chemical solutions ■ Handling is equivalent to that of food additives ■ No post-treatment required *For more details, please refer to the PDF document or feel free to contact us.

• Ozone Generator

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).