Sonacme Technology (Guangdong) Co., Ltd. — established 1995, with over two decades of experience manufacturing environmental test chambers for the battery, automotive, aerospace, electronics, and paint aging industries. Sonacme's own 12,000m² manufacturing facility covers R&D, sheet metal processing, mass production, and after-sales service, allowing full one-stop delivery from design through to import/export logistics. Certified to ISO 9001:2015 and ISO 14001:2015, recognised as a National High-Tech Enterprise, and a permanent CASC member.