Castco Testing Centre Limited was established in 1986. It starts out as a Concrete And Steel Testing COmpany. In 1990, Castco received the HOKLAS accreditation status. In 2003, Castco Certification Services Limited was established and accredited by HKCAS to provide system as well as product certification. Nowadays, Castco has grown to offer geotechnical, survey, certification, inspection, testing and training services. Our customers include many brand names from the food and Chinese medicine manufacturing/retail industry, environmental and construction-related industry. Our company will continue to fulfil our customer's need and formulate our business strategy to position our company for long term success.