[Video Release] Information about the EDI Japan YouTube Channel

Regularly performing membrane cleaning can prevent issues such as poor foaming, blockage, and clogging in advance.

By using a commercially available nylon brush to brush the membrane, you can prevent poor foaming of the membrane in advance. This is an easy cleaning method, so please be sure to do it regularly.

• Water treatment equipment
• Aeration/air diffusion equipment
• Wastewater/wastewater treatment equipment

One reason why EDI Japan is chosen among many aeration devices is that the membrane is easy to replace.

If performance from the initial introduction can no longer be maintained due to degradation or clogging, or if you want to change the material of the membrane, it is necessary to replace the membrane. Replacing the membrane does not require any special skills as long as you have the appropriate tools. EDI Japan contributes to energy-saving and stable operation of wastewater treatment facilities. *Please refer to the PDF materials and feel free to contact us.*

• Water treatment equipment
• Aeration/air diffusion equipment
• Technical and Reference Books

Up to 50% energy savings compared to conventional products! An aeration device that enables high-efficiency wastewater treatment and energy conservation.

"FlexAir" is a membrane-type ultra-fine bubble aeration device widely used around the world, including in the United States, as an aeration device for wastewater treatment and other applications. Thanks to its high oxygen dissolution efficiency, it can achieve energy savings of 20-50% compared to conventional products! Additionally, its mechanism to prevent clogging, which is common in fine bubble diffusers, helps avoid maintenance hassles and decreases in aeration efficiency! We offer a wide range of products at low prices tailored to the specific needs of your site, including desired strength, aeration efficiency, and ease of installation. 【Features】 - Up to 50% energy savings in wastewater treatment costs compared to conventional products! - Clogging prevention function to maintain aeration efficiency! - A rich lineup and low prices tailored to various applications! *You can download the product lineup catalog from the link below. ★We are currently looking for sales agents. Please feel free to contact us★

• Aeration/air diffusion equipment

Active in wastewater and drainage treatment! Enables energy saving, reduced maintenance, and cost reduction.

This is an introduction to the comprehensive catalog of ultra-fine bubble aeration devices. This product promotes energy conservation and has three main features: "energy saving," "low maintenance," and "cost reduction." You can select the most suitable aeration device for your treatment facility based on the airflow and oxygen dissolution efficiency of the five types of aeration devices, allowing you to build the best aeration system. *For more details, please contact us or download the catalog. ★We are currently recruiting sales agents. Please feel free to contact us!★

• Aeration/air diffusion equipment

This is a small, round aeration device (aeration pipe) that allows for installation in every corner and uniform aeration.

This is a representative disc-type ultra-fine bubble diffuser of the membrane type. It can be used as a replacement for conventional coarse bubble aeration devices as an energy-saving measure, or as a substitute for conventional aeration pipes to prevent clogging. 【Features】 - Compact circular design allows for installation in corners - Enables uniform aeration - Available in two types: high oxygen dissolution efficiency type and high airflow type The former has approximately 30% higher oxygen dissolution efficiency (at a depth of 4.6m in clean water) *For more details, please request documentation or download the catalog. ★ We are currently seeking sales agents. Please feel free to contact us! ★

• Aeration/air diffusion equipment
• Wastewater/wastewater treatment equipment

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).