Beijing Tiangang Auxiliary (Tiangang) is a leading producer of UV Light Stabilizers (HALS / UVA) in China and a reliable supplier to world-leading companies for nearly two decades. With nearly two decades of dedicated experiences with Light Stabilizers, we have accumulated considerable amount of experiences in producing high quality high efficiency light stabilizers, and become versed in complex chemical reactions. Innovative sulotions brought to live by our dedeciated R&D and production teams of over 230, have given us competitive edges in product development, quality improvement, cost reductions and customer services. Supported by state-of-the-art testing and analysis equipments, strict adherence to the ISO9001:2000 standards, and implementation of "Whole Product Lifecycle Quality Control" methods, we quarantee 100% top quality of its products to the customers.