We would like to express our sincere gratitude for your exceptional support. The Glass Foam Material Business Cooperative will be exhibiting at the 8th International Construction and Surveying Exhibition (CSPI2026), and we would like to provide you with the following information. The International Construction and Surveying Exhibition (CSPI2026) will contribute to the development of the construction and surveying industry while addressing industry challenges, improving the environment, and enhancing productivity. We hope to showcase our lightweight fill material "Super Sol," allowing you to experience its wide range of applications and benefits firsthand. We will also present representative examples of lightweight fill in a diorama for clearer understanding. We understand you are busy, but we sincerely hope you will take this opportunity to visit us. 【Event Overview】 Exhibition Name: 8th International Construction and Surveying Exhibition (CSPI2026) Date and Time: June 17, 2026 (Wednesday) 10:00 AM – 5:00 PM June 18, 2026 (Thursday) 10:00 AM – 5:00 PM June 19, 2026 (Friday) 10:00 AM – 5:00 PM June 20, 2026 (Saturday) 10:00 AM – 4:00 PM

Technical Seminar on Lightweight Fill Method and Glass Foam Recycled Materials [Program] 1. Lightweight Fill Method (1) What is lightweight fill material? (2) Data on lightweight fill materials (3) Scope of application (4) Construction achievements (5) Workability 2. Glass Foam Recycled Materials (1) What are glass foam recycled materials? (2) Features (3) Design soil parameters (4) Considerations for design and construction (5) Application examples On June 5, 2026 (Friday), a technical seminar on "Lightweight Fill Method and Glass Foam Recycled Materials" will be held at "Denka Big Swan Stadium, Conference Room 4," located at 67-12 Kiyogoro, Chuo Ward, Niigata City, Niigata Prefecture, as a CPD accredited program by the Japan Society of Civil Engineers (2.7 units). Registration is limited to the first 60 participants, so please apply early. For details and registration, please refer to the attached file.

Thank you very much for your continued support of our products. We have recently released a video introducing the materials we handle. In the video, we present the features and applications of our products, and we hope you find it helpful. Please take a look at the link below.

Thank you very much for your continued support and patronage. Now, we regret to inform you that our business hours for the year-end and New Year holidays will be as follows. We kindly ask for your understanding. Holiday Period: December 27 (Saturday) to January 5 (Monday) *Please note that we will conclude our work on December 26 (Friday) for year-end cleaning, and operations will resume on January 6 (Tuesday). 【Regarding Super Sol Delivery】 ● For orders received by December 17 (Wednesday) this year: Loading on December 24 (Wednesday) and delivery on December 25 (Thursday). ● For orders received by December 19 (Friday) for the New Year: (Orders for the New Year will be accepted starting January 6 (Tuesday)). *Please note that due to the busy season in December, vehicle arrangements may not be possible, and we appreciate your understanding. *Responses may vary slightly depending on the shipping origin, so please consult the office for details.

On July 29, 2025 (Tuesday), a technical seminar on "Lightweight Embankment Construction Method and Glass Foam Recycling Materials" will be held in Hiroshima City, Hiroshima Prefecture, as part of the Civil Engineering Society's CPD accredited program (2.7 units). There are 72 spots available on a first-come, first-served basis, so please apply early. For details and application, please refer to the attached file.

On April 1, 2025, we received a notification from Trim Co., Ltd. regarding their withdrawal from the union as of March 31, 2025. The board of directors has respected their wishes and approved the withdrawal. From now on, Trim's Super Sol and the Super Sol of the Glass Foam Material Business Cooperative will no longer be subject to the unified quality control regulations of the cooperative, and therefore cannot be treated as the same quality. For inquiries regarding this matter, please contact us at the following: Glass Foam Material Business Cooperative Secretariat Phone: 03-6436-7811 E-Mail: info@supersol.jp

As of today, May 16, 2023, we are officially relocating our union office. 【New Address】 9F Mita 3-chome Building, 3-4-11 Mita, Minato-ku, Tokyo 108-0073 *This is a move from the 6th floor of the same building to the 9th floor. *There will be no changes to the phone number or other contact information. We appreciate your continued support.

In May 2023, a new Super Sol factory was established by Kyoto Tō Packing Transport Co., Ltd. in Kyotanba Town, Funai District, Kyoto Prefecture.

In March 2022, the newly established Kochi Prefecture Ino Town company, Kinzawa Construction Co., Ltd., had its glass bottle recycling material Super Sol certified under the "Kochi Prefecture Recycling Products Certification System," which has been implemented by Kochi Prefecture since fiscal year 2004. In Kochi Prefecture, the government certifies excellent "recycling products" manufactured and processed within the prefecture using recycled resources such as waste, as well as "environmentally friendly businesses" that have achieved outstanding results through environmentally conscious initiatives, and "eco shops" recognized for contributing to the formation of a circular society in the region.

Today, the Ministry of Economy, Trade and Industry has established and revised Japanese Industrial Standards (JIS) (for July 2019) - Establishment and revision of JIS for glass foam recycling materials, guide symbols, etc. A press release was just distributed under the above title. We are pleased to report that the long-awaited certification of the JIS standards has been officially announced.

On June 10, 2019, we relocated our office from Fujisawa City, Kanagawa Prefecture to Mita, Minato-ku, Tokyo (a 5-minute walk from Tamachi Station on the JR Yamanote Line).

The completion ceremony for Landbell Co., Ltd.'s Super Sol Okayama Factory was held.

A new member has joined the Glass Foam Material Business Cooperative. It is Landbell Co., Ltd. A Super Sol factory has been established in Okayama Prefecture, and the completion ceremony will be held on December 21. We look forward to your continued support.