Nikko Kasei (Lossna Board, Besthermo, Kallyte, Kalhon), Nichias (Neoark, Hemisul, Regisul), Ryoden Kasei (Miolex),

Takiron, Sumitomo (Sumipex), Sekisui (ESLON DC Plate), Mitsubishi Chemical (ACRYLITE, SHINKOLITE, HISHIPLATE), Kanase (Kanaselite), Daiyayouki, Pluskasei, Teijin, Taiwan brands, etc.

Daisho-Denshi (Magic Resin, Career), DIC, Mitsubishi Chemical (DIAFOIL, VINYFOIL, DIANIUM), Ube Industries (Upilex), Kaneka (Apical), Arisawa Manufacturing, Dexerials, Futamura Chemical, Nikkan Industries, Nitto Denko, Nittoshinko, Saxin, Sumitomo, Toray, Teijin, DuPont, etc.

Shinmeilite (large diameter, pipe), Nikko Kasei (Nikolyte), Risho (Rikolite), Futamura Chemical (Taikolite), Ryoden Kasei, Toyama Light Material, Taiwan brands, etc.

Shinmeilite (large diameter, pipe), Nikko Kasei (Nikolyte), Sumitomo (Sumilite), Hitachi Chemical, Ryoden Kasei, Toyama Light Material, etc.

NACks, Sumitomo (Toughace), Takiron, Mitsubishi Chemical (HISHIPLATE), Mitsubishi Gas Chemical (Iupiace), Kasai Sangyo (Kapilon), Polypenco (Tivar), Mitsui Chemical Tohcello (Paulownia), Toray Plastics Precision, Toyama Light Material, Mitsuboshi Belting, Dainichi Can, Yasojima Proceed, Rochling (Polystone), Kureha Extron, Wavelock, Sankyo Kasei, Inoac, Daiwa Giken, etc.

Takiron, Sumitomo (Sunloid petace), Polypenco (Ertalyte, Semitron), Kasai Sangyo (K-GPET), Toyama Light Material, Teijin (Teonex), Ensinger (Tecapet), etc.

Takiron, Sumitomo (Policaace), Sekisui (ESLON DC Plate), NACks, Mitsubishi Chemical (HISHIPLATE), Mitsubishi Gas Chemical (Iupilon), Toray Plastics Precision, Toyama Light Material, Daiyayouki, Kureha Extron, AGC (Carboglass), Teijin (Panlite), Daiwa Giken, Rochling (SUSTARIN), Ensinger (Tecanat), etc.

DIC, Teraoka Seisakusho, Arisawa Manufacturing, Dexerials, Nikkan Industries, Nitto Denko, Nittoshinko, 3M, Saxin, Tesa, etc.

- Risho (Ricocel), Nikko Kasei (Nikopallet)