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

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

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

- Risho (Ricocel), Nikko Kasei (Nikopallet)

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.

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

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

Polypenco(MC Nylon, Nylatron), Ube Industries(Ubesta), Toray Plastics Precision, NACks, Takiron, Toyama Light Material, Mitsuboshi Belting, Chubu Extron, 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.