SOLARTRON.SOLARTRON (founded in 2010, headquartered in Ningbo) is a globally leading high-tech enterprise specializing in polymer functional membranes. The company adheres to an innovation strategy of “import substitution and world leadership,” focusing on the R&D and production of critical functional membrane products that were previously heavily reliant on imports. Its core breakthrough lies in optical reflective films, where independent innovation has broken the technological monopoly held by Japan and South Korea. Since 2017, SOLARTRON has consistently ranked first globally in market share, exceeding 50% in 2024 and solidifying its position as the undisputed global leader in this niche segment. Its product portfolio encompasses reflective films, optical base films, lithium-ion battery separators, and other functional membranes, dedicated to serving China's strategic emerging industries.