Announcement of Omnissa ONE Tokyo 2025 Exhibition

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.