One Stop Testing Laboratory and Inspection Services, Inc. (OSTLIS) is a reputable brand that specializes in ensuring the safety of infrastructure facilities and maintaining quality in construction materials. Established in September 2020, OSTLIS offers a comprehensive range of testing, inspection, and auditing services for product certification, regulatory bodies, and independent customers.

For material testing, OSTLIS conducts chemical, mechanical, and physical tests on various construction materials including steel bars, cement, plywood, steel pipes, angle bars, steel wires, steel sheets, and nails. They have also recently expanded their testing capabilities to include electrical products such as Christmas lights, switches, plugs, sockets, extension cords, and wires & cables.

The inspection services provided by OSTLIS adhere to relevant standards and cover categories such as electrical products, mechanical/building and construction materials, and chemical/consumer/other related products. Their auditing team consists of highly qualified experts, including international experts from China, Vietnam, Indonesia, and Thailand.

With their dedication to safety and quality, OSTLIS is recognized as a Bureau of Philippine Standards accredited testing laboratory for product certification.

To inquire about their services, customers can reach OSTLIS through the provided contact numbers or visit their head office in Biñan, Laguna.