We will be exhibiting at the Functional Film Expo 2022 held on July 27-28, 2022.

This is a surface treatment technology that dramatically improves the adhesion of fluororesin films and polyimide films, which have been considered difficult to bond until now.

At Kawamura Industries, we apply plasma treatment to films, metal foils, non-woven fabrics, and more, performing surface modifications such as hydrophilization and hydrophobization. This treatment significantly improves the adhesion of various films and allows for the removal and purification of organic substances from the substrate surface. It can effectively remove residues such as rolling oils that are difficult to completely eliminate with wet cleaning. Additionally, it is possible to bond various materials together without the use of adhesives. **Features of Kawamura Industries' 'Vacuum Plasma Treatment'** - Dramatically improves adhesive strength - Effectively removes rolling oils and organic substances, purifying the surface - Enables adhesive-free bonding of various materials - Selects suitable gas types and plasma treatment conditions for each project - Treatment effects last for an extended period - Continuous processing is possible with roll-to-roll technology *For more details, please refer to the PDF document or feel free to contact us.*

• Surface treatment contract service

[Presentation of 4 Technical Introduction Materials] We respond from prototyping to mass production! We also support material procurement. We accommodate electronic materials that require high functionality, such as those for 5G products.

At Kawamura Industries, we create and provide electronic materials with various functions by integrating processes such as slitting, plasma surface treatment, sputtering, and thermal lamination. We can handle everything from prototyping to mass production, including material procurement. We welcome inquiries for small lot requests as well. 【Our Technologies】 ■ Slitting With about 50 years of extensive experience, we can accommodate slit widths from 2mm to 2,000mm. We can process in clean rooms as well as in yellow rooms. ■ Plasma Surface Treatment Effective for improving the adhesion of low-adhesion films like fluorine films. Our roll-to-roll equipment allows for rapid mass production startup. ■ Thermal Lamination We have a vacuum thermal press capable of handling high temperatures up to 400°C within a clean room. Our laminating machines can also operate in a clean environment from the preparation stage. ■ Sputtering We possess roll-to-roll equipment. In collaboration with partner companies, we can also perform electrolytic copper plating on sputtered materials using roll-to-roll methods. *You can view technical documents and introductory materials regarding the above processing technologies from the <PDF Download>. Please feel free to contact us with any inquiries.

• Processing Contract
• Surface treatment contract service
• plastic

It is a heat-resistant laminated board that integrates polyimide film without adhesive.

Kawamura Industries' "Polyimide Laminate (PI-Plate)" is a laminate made by layering and thermally bonding polyimide film that has been activated on its surface through plasma treatment. **Features of Kawamura Industries' "Polyimide Laminate"** - Excellent heat resistance due to being adhesive-free → Continuous: 200°C / Short-term: 400°C - Exhibits excellent mechanical properties derived from polyimide film - Laminates can be produced in sizes up to 480mm x 1,100mm - Maximum thickness of 10mm (proven) *Please feel free to consult us regarding thicknesses over 10mm. *For examples of properties, please refer to the PDF document or feel free to contact us.

• Processing Contract
• Other polymer materials
• Other contract services

The "vacuum hot press," which can also perform surface treatment in the previous process, and the "coating" technology for metal foils are suitable for the processing of electronic materials such as substrates for 5G and base materials for planar heating elements!

At Kawamura Industries, we develop and manufacture materials for electronic applications and provide associated processing technologies. We will introduce technologies that have a proven track record for substrates used in 5G and for planar heating elements. 【Our Technology: Electronic Materials - Strengths of Vacuum Heat Press Coating Technology】 ■ Vacuum Heat Press In prototype and mass production using vacuum heat pressing, we can press without adhesives, allowing us to better utilize the inherent properties of the materials. (Note: We can also accommodate laminated products with adhesives.) - We have a large number of press machines, capable of handling various sizes and temperatures. - There are press machines installed in a cleanroom environment. ■ Resin Coating on Metal Foils Although we operate in a contract processing format, we can combine "metal foil + high-temperature treatment." - Our coating drying oven can handle temperatures up to 260°C, allowing for the drying of high-boiling point solvents. - We can also accommodate polyimide coatings with a high-temperature curing oven that can handle up to 400°C. Including material procurement, we provide consistent support from small lots and prototypes to mass production, so please feel free to contact us. *We are currently publishing an introductory document summarizing what Kawamura Industries can do! You can view it immediately via [PDF Download].

• Press Dies
• Other painting machines
• Surface treatment contract service

By simply dissolving the powder in a solvent and drying it, you can obtain a transparent and high-heat-resistant polyimide film!

Kawamura Industries' "KPI-MX300F" is a polyimide powder material that can dissolve in various solvents. The films obtained by dissolving in a solvent and then heating and drying have minimal coloring and high transparency, which is a significant feature. **Features of Kawamura Industries' "KPI-MX300F"** - Can dissolve in various solvents - Produces transparent, high-heat-resistant polyimide films - The resulting films have minimal coloring and high transparency *For property values, please refer to the PDF document or feel free to contact us.*

• Composite Materials
• Other polymer materials
• Organic Natural Materials

In civil engineering sites, there are many instances where sheet boards are used for temporary roads, access roads, heavy machinery work yards, material storage areas, and pedestrian pathways. Traditional steel plates are heavy, which can require large cranes or heavy machinery for installation and removal, increasing the workload depending on site conditions. Hyper CLT sheet boards are civil engineering materials made from wooden CLT for civil use. The 5×10 board weighs about 230 kg, and the 5×20 board weighs about 460 kg, making them lightweight and easy to handle even with small machinery, which allows for easier installation without the need for large cranes. They also contribute to reducing the burden of transportation, installation, and removal, as well as improving maneuverability on site. Recommended as a registered technology by the Ministry of Land, Infrastructure, Transport and Tourism under NETIS "TH-250021-A," it is suitable for companies considering civil engineering, civil use, and civil CLT. This material is easy to use for creative proposals in public works, such as alternatives to steel plates, common temporary structures, temporary roads, and curing for material storage areas.

Fukuda Co., Ltd. has been pursuing leak detection for 60 years and is committed to advancing the future of leak testing. 【 Supporting Various Leak Tests: Air Leak Test / Gas Leak Test (Hydrogen Gas, Helium Gas) 】 We develop, manufacture, and sell leak testing equipment to inspect airtightness and sealing properties. We will propose the appropriate testers and devices for each inspection target. 【 Target Industries and Examples of Inspection Targets 】 - Automotive Industry: Engines, FC components, valves and piping, various parts - Electronic Components Industry: Smartphones, keyless switches, various small sensors - Pharmaceuticals / Food / Cosmetics Industry: Bottle containers, syringes, vials, eye drop containers, pillow packaging, PTP packaging We will propose the most suitable leak testers for each industry. 【 ISO Certification 】JIS Q 9001:2015 (ISO 9001:2015)

Our speaker lineup has expanded with the introduction of 16 new models. This release includes the first IPX7 waterproof speaker in the standard Φ28mm size and a wideband speaker with the lowest resonance frequency of 130Hz in the 40mm size. Additionally, we have introduced enclosure boxes for acoustic testing with 15 x 11mm, 16 x 9mm, and 18 x 13mm speakers, enhancing our support system to facilitate easier design and prototyping. Size: 20 x 8 x 3 mm to 40.2 x 40.2 x 24 mm Shape: Round, rectangular, square, oval Sound pressure: 81 dB to 106 dB Impedance: 4Ω to 8Ω Resonance frequency: 130Hz to 800Hz Mounting type: 200mm lead wire, solder pad

Azearth Corporation (Headquarters: Taito-ku, Tokyo; President: Fumiaki Saito), a specialized supplier of protective clothing, launched sales of "AZ GUARDⓇ 8100FR"—a disposable protective suit featuring self-extinguishing properties—on July 1, 2026. This product was developed to maintain the performance of flame-retardant workwear and enhance worker safety. For further details, please feel free to contact us via the links below. *AZ GUARD is a registered trademark of Azearth Corporation.

Dear Sir/Madam, I hope this message finds you well and thriving. I would like to express my sincere gratitude for your continued support. We would like to inform you that our company will be closed for summer vacation during the following period: ■ Summer Vacation Period From Saturday, August 8, 2026, to Sunday, August 16, 2026. We will resume normal operations on Monday, August 17, 2026. Inquiries received during the vacation period will be addressed sequentially after the start of business. We apologize for any inconvenience this may cause and appreciate your understanding.