We will be exhibiting at the International Powder Technology Exhibition Tokyo 2018 from November 28 (Wednesday) to November 30 (Friday).

★Why not turn the waste liquid you are currently disposing of into something valuable?★ Accepting tests for 10 kg of solid material from 1000 L of slurry liquid in 1 hour.

The "Pleated Filter Dewatering" device allows for the suction filtration of high-concentration slurry (mud-like mixture), forming a cake layer on the filter surface. This formed cake layer is then dewatered and dried, allowing it to be collected as sludge (aggregated solid). Our unique pleated filter enables dewatering and drying in a compact device with a short cycle time. No coagulants or filtration aids are required. The moisture content of the sludge can be as low as 1% for inorganic materials. 【Features】 ■ Individual liquid separation to dewatering and drying in 60 minutes (all-in-one) ■ Compatible with ultra-high concentration turbid water ■ Processing capacity of 400 kg/day (based on processing 1,000 L of 20,000 PPM turbid water) ■ Maintenance requires only filter replacement ◎ For more details, please refer to the PDF document or feel free to contact us.

• Wastewater/wastewater treatment equipment

"Dakkan" is now available in a tabletop size! A flat membrane dewatering and drying device suitable for verification before the introduction of Dakkan.

The "Flat Dakkann" is a tabletop-sized flat membrane dehydration and drying device derived from Dakkann, designed for small quantities and diverse research and development applications. Its compact size allows for research and development as well as various sample tests without the need for a dedicated space, thereby improving efficiency. It enables high-performance dehydration and drying easily, allowing for in-house research and development of small quantities and diverse products, which helps reduce costs. 【Features】 ■ Tabletop size ■ Easy high-performance dehydration and drying ■ Cost reduction for small quantities and diverse products in-house ■ Increased efficiency due to no space restrictions *For more details, please refer to the PDF document or feel free to contact us.

• Other metal materials
• Testing Equipment and Devices
• Wastewater/wastewater treatment equipment

Reduction of costs for water supply, drainage fees, and other water treatment! Proposing solutions to challenges tailored to the environment.

<Common Issues in Water Treatment and Wastewater Treatment> I want to reduce my monthly water bill... I introduced a system, but it hasn't met my expectations... Wastewater treatment is costly... Maintenance requires time and money... ＼Ryuki Engineering has the solution／ Through thorough hearings, ongoing field tests, and product customization, we provide tailored "water treatment solutions" for each customer. 【Introducing Water Treatment Products】 ■ Membrane Filtration High-Precision Water Treatment Device ECO Clean: Achieves resource and cost reduction ■ Pleated Dryer Dakkann: Adds high value through powder drying and solution recovery! ■ Ozone Microbubble O-Mikuron III: Efficiently sterilizes, deodorizes, and decolorizes liquids ★ We are distributing "Case Study Materials" for plating factories, metal processing factories, etc. You can view them immediately from the 【PDF Download】.

• Water treatment equipment
• Wastewater/wastewater treatment equipment

We are pleased to announce that our company will be participating as a sponsor in Omnissa's flagship event, "Omnissa ONE Tokyo 2025."

We will be setting up a booth at the "Industrial Exchange Exhibition 2025," which will be held from November 26 (Wednesday) to November 28 (Friday), 2025. We sincerely hope you will consider visiting us. Date: November 26 (Wednesday) to November 28 (Friday), 2025 Venue: Tokyo Big Sight (3-11-1 Ariake, Koto-ku, Tokyo 135-0063) Our Booth: West Exhibition Hall, Booth Number: S-04 Admission Fee: Free Official Website: https://www.sangyo-koryuten.tokyo/ At this exhibition, we will showcase tin sulfide dispersion liquid and tin sulfide powder as high-capacity anode materials for secondary batteries, as well as tin sulfide nanosheets for optical devices, sensors, and semiconductors. We look forward to welcoming you all.

We would like to inform you that our company will co-host the Luncheon Seminar at the 46th Western Japan Society of Hepatology. Date and Time: December 5, 2025 (Friday) 11:40 AM - 12:30 PM Venue: Room 5 (Kaikyō Messe Shimonoseki 8F Room 801) For more details, please refer to the attached document.

[Key Lecture Content] 1. Reflection on the Mobile Industry in 2025 and Outlook for 2026 Mr. Toshiichi Kita, Senior Partner, Nomura Research Institute 1. What happened in the mobile market in 2025? ~Challenges arising from excessive regulation~ 2. Changes in the sales agency business 3. Evolution of devices and terminals 4. Expansion of the used and refurbished terminal market 5. Progress in carrier economic zone competition 6. Future of communication infrastructure business/telecommunication business 7. Review of competition rules 8. Outlook for 2026 9. Q&A / Business card exchange 2. Current Status and Future Outlook of the Used Terminal Market Mr. Hamaichi Awazu, President, NewsDotTech 1. Overview of the mobile market in 2025 ~What changed amid regulatory review and market reorganization~ 2. Factors contributing to the expansion of the used and refurbished terminal market 3. Initiatives of Reuse Mobile Japan 4. Challenges faced by NewsDotTech 5. Future outlook and vision 6. Q&A / Business card exchange

Contec will exhibit at the "IIFES2025 Advanced Technology Comprehensive Exhibition for Automation and Measurement," which will be held at Tokyo Big Sight from November 19 (Wednesday) to November 21 (Friday), 2025. This exhibition is a comprehensive showcase of cutting-edge technologies and information from the automation and measurement industries, centered around the electrical and measurement sectors. We will display many products, including the highly anticipated new CONPROSYS Robust I/O series and the CONPROSYS nano EtherCAT coupler unit.