| Name | Country | Market Cap (US$) |
|---|
| JAPAN COMPOSITE CO.,LTD. | Japan | Private |
| JAPAN EPOXY RESINS CO.,LTD. | Japan | Private |
| JAPAN POLY-PRODUCTS CORPORATION | Japan | Private |
| JAPAN POLYETHYLENE CORPORATION | Japan | Private |
| JAPAN POLYPROPYLENE CORPORATION | Japan | Private |
| Japan Polystyrene Inc. | Japan | Private |
| JAPAN SEAL INDUSTRIES CO.,LTD. | Japan | Private |
| JAPAN UNIPET CO.,LTD. | Japan | Private |
| Jasper Rubber Products Inc | United States | Private |
| JASZ-PLASZTIK Korlatolt Felelossegu Tarsasag | Hungary | Private |
| Jaycare Ltd | United Kingdom | Private |
| JCGC Suzhou Anli Chemical Co., Ltd. | China | Private |
| JCOPLASTIC SPA INDUSTRIA CONTENITORI PLASTICI | Italy | Private |
| Jdr And Associates Inc | United States | Private |
| Jebsen & Jessen (South East Asia) Pte Ltd | Singapore | Private |
| JEBSEN & JESSEN BROADWAY (S) PTE LTD | Singapore | Private |
| JEHIER | France | Private |
| Jeil Wool Co., LTD. | South Korea | Private |
| JELENIA PLAST SP Z O O | Poland | Private |
| JERAISY CARDTEC | Saudi Arabia | Private |
| JET Brakel Aero GmbH | Germany | Private |
| Jet Industries, Inc. | United States | Private |
| Jet Plastica Industries Inc | United States | Private |
| Jet Sac | France | Private |
| JET Tageslicht & RWA GmbH | Germany | Private |
| Jetta (Guangzhou) Co., Ltd. | China | Private |
| Jex Co., Ltd. | Japan | Private |
| JFE SHOJI TRADE MATECH,INC. | Japan | Private |
| Ji'nan Longhongxin Plastic Co.,Ltd. | China | Private |
| JIA HSING ENTERPRISE CO., LTD. | Taiwan | Private |
| Jiangsu Fullmark Chemicals Co., Ltd. | China | Private |
| Jiangsu Garson Chemical Product Industry Co., Ltd. | China | Private |
| Jiangsu Sanmu Group Corp. | China | Private |
| Jiangsu ZHONGJIN MATAI Medicinal Packaging Co., Ltd. | China | Private |
| Jiangyin Huashi Glass Fiber Reinforced Plastic Chemical Factory | China | Private |
| Jilin Chemical Industry Group Keshilinsong Chemical Plant | China | Private |
| Jimten, S.A. | Spain | Private |
| Jin Hai Development (HK) Company Limited | Hong Kong | Private |
| JINDAL POLYESTER LTD | India | Private |
| Jing Mei Industrial Holdings Ltd | Hong Kong | Private |
| Jing Mei Industrial Limited | Hong Kong | Private |
| Jinling Dsm Resins Company Limited | China | Private |
| JIS GRANDE CO.,LTD. | Japan | Private |
| Jita Oy | Finland | Private |
| Jiujiang Chemical Fiber Co., Ltd. | China | Private |
| JLG HOLDINGS LTD | Republic of Ireland | Private |
| JM Eagle Company, Inc. | United States | Private |
| JMP Ltd. | South Korea | Private |
| JOC Great Wall Corp. | China | Private |
| JOH. SPRINZ GmbH & CO. | Germany | Private |
| Johannes Reifenhäuser Holding GmbH & Co. KG. | Germany | Private |
| John Cole Chemical Corporation | United States | Private |
| John Crane GmbH | Germany | Private |
| JOHN CRANE JAPAN INC. | Japan | Private |
| John Crane Sealol | United States | Private |
| JOHN CRANE UK LTD | United Kingdom | Private |
| John Fredericks Plastics Ltd | United Kingdom | Private |
| John Guest Ltd | United Kingdom | Private |
| JOHN HELLYAR & CO LTD | United Kingdom | Private |
| Johns Manville GmbH | Germany | Private |
| JOHNSON CONTROLS HOLDING AUSTRALIA PTY. LTD. | Australia | Private |
| Johnson Controls Objekt Bochum GmbH & Co. KG | Germany | Private |
| JOHNSON CONTROLS ROTH SAS | France | Private |
| JOKEY FRANCE | France | Private |
| Jokey Plastik Gummersbach GmbH | Germany | Private |
| Jokey Plastik Sohland GmbH | Germany | Private |
| Jokey Plastik Wipperfürth GmbH | Germany | Private |
| JOKEY PRAHA CZ, s.r.o. | Czech Republic | Private |
| Joma-Polytec Kunststofftechnik GmbH | Germany | Private |
| JONAN KOGYO K.K. | Japan | Private |
| Jones Plastic & Engineering Corporation | United States | Private |
| Josef Mawick Kunststoff-Spritzgußwerk GmbH & Co. KG | Germany | Private |
| Josef Meeth Fensterfabrik GmbH & Co KG | Germany | Private |
| Jotun Powder Coatings N AS | Norway | Private |
| JPK INDUSTRIES (M) SDN BHD | Malaysia | Private |
| JPS Automotive Products Corporation | United States | Private |
| JSP CORPORATION | Japan | Private |
| JSP International | United States | Private |
| JSP INTERNATIONAL | France | Private |
| JSP MOLDING K.K. | Japan | Private |
| Jt Nifco, K.K. | Japan | Private |
| JUHA Kunststoffverarbeitung GmbH & Co. KG | Germany | Private |
| Junkerwerk Linder GmbH & Co. | Germany | Private |
| JUTEC CO.,LTD. | Japan | Private |
| K & D DESIGN LTD. | Israel | Private |
| K C A Engineered Plastics Inc | United States | Private |
| K W H Pipe (Canada) Ltd | Canada | Private |
| K-Net Asia Limited | Hong Kong | Private |
| K.D. Feddersen GmbH & Co. KG | Germany | Private |
| K.L. CHEMICALS CO., LTD. | Taiwan | Private |
| Kai Sun Petrochemical Materials Company Limited | Hong Kong | Private |
| KAISERS INTERNATIONAL CORPORATION | Taiwan | Private |
| KAIYO GUM K.K. | Japan | Private |
| KAKOGAWA PLASTICS CO.,LTD. | Japan | Private |
| KAKUICHI KASEI CO.,LTD. | Japan | Private |
| KAKUICHI SEISAKUJO, K.K. | Japan | Private |
| Kalona Plastics Inc | United States | Private |
| Kalwall Corporation | United States | Private |
| KAM LEE METAL AND PLASTIC FACTORY LTD | Hong Kong | Private |
| Kam Yuen Petrochemical (H.K.) Limited | Hong Kong | Private |
|
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