# Hong Kwang Group (鴻光集團) > Professional Electrodeposition Coating (EDP) and metal surface treatment services with 40+ years of experience. Based in Thailand, serving automotive, electronics, and manufacturing industries across Asia-Pacific. ## Company Information - Name: Hong Kwang Electrodeposition Coating Co., Ltd. (鴻光電著塗裝股份有限公司) - Parent Group: Hong Kwang Group (鴻光集團) - Founded: 1985 - Headquarters: Bangkok, Thailand - Factory 1: Bangpoo Industrial Estate, Bangkok (established 2004) - Factory 2: Chonburi Province (Hong Yu Chemical, established 2013) - Certifications: ISO 9001, ISO 14001, ISO/TS 16949 - Website: https://hyedp.com - Languages: English, Traditional Chinese, Simplified Chinese, Japanese, Thai ## Core Services - [Electrodeposition Coating (E-coating)](https://hyedp.com/en/services/plating.php): Electric current-based paint deposition on conductive metal surfaces, providing uniform corrosion-resistant coating for iron, zinc, and aluminum parts. - [Custom Surface Treatment](https://hyedp.com/en/services/customization.php): Tailored coating solutions for specific industrial requirements, including color matching, thickness control, and special material processing. - [Delivery & Logistics](https://hyedp.com/en/services/delivery.php): On-time delivery guarantee through efficient production planning and logistics management. - [Quality Control & Testing](https://hyedp.com/en/about/quality.php): Professional testing laboratory with ISO-certified quality management systems. ## Materials Processed - Iron (鐵件) - Zinc (鋅件) - Aluminum (鋁件) - Other conductive metals ## Industries Served - Automotive parts & components (汽車零件) - Electronics enclosures & chassis (電子外殼) - Home appliances (家電產品) - Industrial equipment & machinery (工業設備) - Building hardware (建築五金) ## Key Advantages - 40+ years of professional EDP experience - Two modern manufacturing facilities in Thailand - ISO 9001 / ISO 14001 / ISO/TS 16949 certified - Advanced automated production lines - Professional in-house testing laboratory - Environmentally responsible: wastewater treatment, waste recycling, energy conservation - Multilingual customer support (5 languages) ## Knowledge Center & Technical Resources - [EDP Technology Articles](https://hyedp.com/en/news/): Technical articles covering electrodeposition coating principles, applications, and industry trends - [FAQ (English)](https://hyedp.com/en/faq/): Frequently asked questions about EDP technology, processes, and services - [FAQ (繁中)](https://hyedp.com/zh-tw/faq/): 電著塗裝常見問題 - [FAQ (日本語)](https://hyedp.com/jp/faq/): 電着塗装よくある質問 - [FAQ (ไทย)](https://hyedp.com/th/faq/): คำถามที่พบบ่อย - [Case Studies](https://hyedp.com/en/cases/): Real-world application examples across industries - [ESG & Sustainability](https://hyedp.com/en/esg/): Environmental protection, carbon reduction, and circular economy initiatives ## Contact - Quote Request: https://hyedp.com/en/contact/quote.php - Factory Visit: https://hyedp.com/en/contact/visit.php - General Inquiry: https://hyedp.com/en/contact/