TOPCOVER Enterprise Co., Ltd. is a Taiwan-based manufacturer specializing in expanded vermiculite, expanded perlite, and natural volcanic mineral products. Founded in 1996 and located in Kaohsiung’s Dafa Industrial Park, we combine long-term industry experience with in-house production to deliver consistent, high-quality materials.

We source selected raw minerals from trusted origins and process them through controlled high-temperature expansion, ensuring stable performance, uniform particle size, and reliable quality for every batch. Our minerals—including white/red/black volcanic stone, green zeolite, and maifan stone—support a wide range of applications in construction, insulation, agriculture, horticulture, aquaponics, chemical processing, and metallurgy.

For more than 25 years, TOPCOVER has focused on technical reliability, supply stability, and customer partnership. We continue to advance production technology and expand natural mineral applications to help industries operate more safely, efficiently, and sustainably.

Services: Vermiculite, Perlite, Pumice, Zeolite, Maifan Stone, Filter Aid, Slag Coagulant, Fine Perlite Powder, Fine Pumice Powder