Overseas affiliates
North, Central, and South America
| Company name | Address / Business activities | 
|---|---|
| MEX OKAYA-TN (U.S.A.), INC. | 
                821 Kuhn Drive #206, Chula Vista, CA 91914, U.S.A. [Google Maps] Business activities: sales of metal press parts  | 
        
| MEX OKAYA-TN, S. DE R.L. DE C.V. | 
                boulevard Pacifico 9819, Parque Indusrial Pacifico, Tijuana, Baja California 22643, Mexico [Google Maps] Business activities: manufacture of metal press parts  | 
        
| 
                                INTERNATIONAL MOLD STEEL, INC. | 
            
                1155 Victory Place, Hebron, KY 41048, U.S.A. [Google Maps] Business activities: sale of special steel mold materials  | 
        
| 
                                OKAYA SHINNICHI CORP. OF AMERICA | 
            
                300 Crompton Street, Charlotte, NC 28273, U.S.A. [Google Maps] Business activities: manufacture of automotive parts  | 
        
| 
                                PEARL & OKAYA, INC. | 
            
                516 Buck Place Lexington, KY 40511, U.S.A. [Google Maps] Business activities: installation, supervision, and maintenance of mechanical equipment such as high-frequency and ultrasonic welders, high-frequency power sources for plasma generators, and vacuum forming machines  | 
        
| 
                                Fine Flow Service, Ltd. | 
            
                8601 Cross Park Drive, Suite 100, Austin, TX 78754, U.S.A. [Google Maps] Business activities: sale and maintenance of mass flow controllers  | 
        
Europe
| Company name | Address / Business activities | 
|---|---|
| 
                                POLAND TOKAI OKAYA MANUFACTURING SP. Z O.O. | 
            
                Ostaszewo 57G 87-148, Lysomice, Poland [Google Maps] Business activities: manufacture and sale of press parts for liquid crystal televisions  | 
        
Middle East, South Asia, Southeast Asia, and Oceania
| Company name | Address / Business activities | 
|---|---|
| 
                                UNION AUTOPARTS MANUFACTURING CO., LTD. | 
            
                102 Poochaosamingprai Road, Samrongtai Phrapradaeng, Samutprakarn 10130, Thailand [Google Maps] Business activities: manufacture, sale, and plating of two-wheeled vehicle rims  | 
        
| SIAM OKAYA CHEMICAL CO., LTD. | 
                60/18 Moo 3 Tambol Mabyangporn, Amphur Pluakdaeng, Rayong 21140, Thailand [Google Maps] Business activities: resin coloring compound business, resin sales  | 
        
| KOYO Marketing and Processing Asia Co., Ltd. | 
                Amata City Chonburi Industrial Estate 700/38 Moo 6, T.Nongmaidang, A. Muang Chonburi, Chonburi 20000, Thailand [Google Maps] Business activities: Processing & distribution of non-ferrous metals, precision rolled products, and functional resins. Planning and sales of various processed products  | 
        
| 
                                SOMAT CO., LTD. | 
            
                No.1 MD Tower 15th Floor. Room E,F, Soi Bangna-Trad 25, Bangna Nua, Bangna, Bangkok 10260, Thailand [Google Maps] Business activities: sale of machinery, cutting tools, and consumable goods  | 
        
| SOMAT CO., LTD. (PRACHINBURI OFFICE) | 
                206/17 Moo 2, Tumbol Thatoom, Aumpur Srimahapht, Prachinburi, Thailand [Google Maps] | 
        
| SOMAT CO., LTD. (RAYONG OFFICE) | 
                No. 303 Moo 4, Tumbol Pluakdaeng, Aumpur Plukdaeng, Rayong, Thailand [Google Maps] | 
        
| ROKUGO ELEMEC (THAILAND) CO., LTD. | 
                253 Asoke, 12th Floor, Sukhumvit21 Road, Klongtoey Nua, Wattana, Bangkok 10110, Thailand [Google Maps] Business activities: Sale of industrial electrical and electronic equipment  | 
        
| PT.KOYO MARKETING AND PROCESSING INDONESIA | 
                Kawasan Industri Mitrakarawang Jl. Mitra Raya II blok E4 Desa Parungmulya Kec. Ciampel Karawang 41361 Jawa Barat, Indonesia [Google Maps] Business activities: Non-ferrous metal slitting, storage and delivery.  | 
        
| PT.KOYO MATERICA SALES INDONESIA | 
                Kawasan Industri Mitrakarawang Jl. Mitra Raya II blok E4 Desa Parungmulya Kec. Ciampel Karawang 41361 Jawa Barat, Indonesia [Google Maps] Business activities: Planning and sales of various processed products  | 
        
| 
                                PT. ARTOKAYA INDONESIA | 
            
                Kawasan Industri Jababeka II, Blok QQ No. 11, Cikarang, Bekasi 17530, Jawa-Barat, Indonesia [Google Maps] Business activities: manufacture, processing, sale, design, and construction of metal roofing materials  | 
        
| 
                                UAM PHILIPPINES, INC. | 
            
                Lot33, Second Street, First Philippine Industrial Park, Tanauan City 4232, Batangas, Philippines [Google Maps] Business activities: assembly and sale of rims for two-wheeled vehicles  | 
        
| UAM PHILIPPINES, INC. (Manila Branch) | 
                9th Floor, Tower 1, Insular Life Corporate Centre, Insular Drive, Filinvest Corporate City, Alabang, Muntinlupa City, Philippines [Google Maps] | 
        
| UPI REAL ESTATE, INC. | 
                Lot33, Second Street., First Philippine Industrial Park, Tanauan City 4232, Batangas, Philippines [Google Maps] Business activities: land tenure company  | 
        
| 
                                NAITO VIETNAM CO., LTD. | 
            
                5th Floor, Phuong Long Building, 506 Nguyen Dinh Chieu, Ban Co Ward, Ho Chi Minh City, Viet Nam [Google Maps] Business activities: sale of machinery and tools  | 
        
| FA SYSTEM & TECHNOLOGY VIETNAM CO., LTD. | 
                Room 1306, 13th Floor, CMC Tower, No.11 Duy Tan street, Cau Giay Ward, Ha Noi City, Viet Nam [Google Maps] Business activities: Design and development of automatic control and robotic control systems, business systems, and development of software.  | 
        
| KOYO MARKETING AND PROCESSING VIETNAM CO., LTD. | 
                29th Floor, East Tower, Lotte Center Hanoi, No. 54 Lieu Giai Street, Giang Vo Ward, Ha Noi City, Viet Nam [Google Maps] Business activities: Processing & distribution of non-ferrous metals and functional resins. Planning and sales of various processed products  | 
        
| SIAM STEEL VIETNAM CO., LTD. | 
                Phuc Dien Industrial Zone, Mao Dien Commune, Hai Phong City, Viet Nam [Google Maps] Business activities: manufacture, processing, sale, design, and construction of metal roofing materials  | 
        
| 
                                SIAM STEEL SERVICE CENTER PUBLIC COMPANY LIMITED | 
            
                51/3 Poochao Road, Bangyaprak, Samutprakarn 10130, Thailand [Google Maps] Business activities: steel plate shearing, press working, and metal roofing, etc.  | 
        
| 
                                SIAM MTK CO., LTD. | 
            
                60/6 Moo 3 Mabyangporn, Pluakdaeng, Rayong 21140, Thailand [Google Maps] Business activities: manufacture of polished bars and building materials  | 
        
| 
                                SIAM GOSHI MANUFACTURING CO., LTD. | 
            
                60 Moo 3 Mabyangporn, Pluakdaeng, Rayong 21140, Thailand [Google Maps] Business activities: molding and plating of mufflers and rims for two-wheeled vehicles  | 
        
East Asia
| Company name | Address / Business activities | 
|---|---|
| KMPC LIMITED | 
                Unit No.02, 16th Floor, CCT TELECOM BUILDING, No.11 Wo Shing Street, Shatin, New Territories, Hong Kong [Google Maps] Business activities: Planning and sales of various processed products  | 
        
| KMPS CO., LTD. | 
                802 Room, 4th Floor, MAYFAIR TOWER, 83 Fumin Road, Jingan District, Shanghai 200040, P. R. China [Google Maps] Business activities: Processing & distribution of non-ferrous metals and functional resins. Planning and sales of various processed products  | 
        
| OKAYA ELECTRONICS (H.K.) LTD. | 
                Unit 1401-2, 14th Floor, 308 Central Des Voeux, 308 Des Voeux Road Central,  Hong Kong [Google Maps] Business activities: sale of electronic components and semiconductors  | 
        
| OKAYA ELECTRONICS (SHENZHEN) LTD. | 
                0929, TOWER B, East Pacific International Center, 7888 Shennan Avenue, Futian District, Shenzhen, 518040 P.R.China [Google Maps] Business activities: Technical and quality support and marketing of electronic components and semiconductors  | 
        
| Kuwana Metals Instruments (Shenzhen) Ltd. | 
                Room103, Building#2, Jiuzhou Industrial Park, No.10, Shijiuhao Road,Tongguan Road, Guangming District, Shenzhen, Guangdong, 518132 P.R.China [Google Maps] Business activities: manufacturing and sale of mass flow controllers  | 
        
| SHANGHAI ROKUGO ELEMEC LTD. | 
                160A 1st Floor -L, Aona Road, Free Trade Zone, Pudong Waigaoqiao, Shanghai, 200131 P.R.China [Google Maps] Business activities: development of electrical and electronic equipment, simple processing, sales, logistics consulting, import and export, transit trade  | 
        
| SHANGHAI ROKUGO ELEMEC LTD. (HANGZHOU OFFICE) | 
                Room 701, Building A, Jinjiang Dynasty Building, No.217, Wujiang Road, Shangcheng District, Hangzhou City, Zhejiang Province, 310006 P.R.China [Google Maps] | 
        
| 
                                OKAYA SPECIALTY STEEL CENTER (DALIAN) CO., LTD. | 
            
                22-A, Jingang Industrial Park, No.41-2 Wanda Road, Dalian Economic & Technological Development Area, Dalian, Liaoning Province, 116620 P.R.China [Google Maps] Business activities: sale of steel, manufacture and sale of cut steel products, sale of processed steel products  | 
        
| NANKAI OKAYA MOLD (SHANGHAI) CO., LTD. | 
                Block 2, No. 1289, Du Hui Lu, Minhang District, Shanghai, 201108 P.R.China [Google Maps] Business activities: manufacture and sale of hot forging dies  | 
        
| TIANJIN RAINBOW HILLS CAST IRON CO., LTD. | 
                No. 31 Yongfeng Street, Tianjin Economic-Technological Development Area, Tianjin, 300457 P.R.China [Google Maps] Business activities: manufacture and sale of the press mold castings for automobiles  | 
        
| NANTONG RAINBOW HILLS CAST IRON CO., LTD. | 
                No. 27 Gudong Road, Nantong Economic and Technological Development Zone, Jiangsu, 226010 P.R.China [Google Maps] Business activities: manufacture and sale of the press mold castings for automobiles  | 
        
| HAYASHISEIKO (SUZHOU) CO., LTD. | 
                No. 7 Shanglin Road, Gaoxin District, Suzhou, 215151 P.R. China [Google Maps] Business activities: manufacture of hydraulic hose fittings and automotive parts, and sales of polished steel bars  |