Shandong Qingyun Changxin Chemical Science-Tech Co., Ltd. is specialized in manufacturing 1-Methyl-2-pyrrolidinone (NMP) and gamma-butyrolactone (GBL) series. Located in Shandong Province, China, we enjoy convenient access to major transportation networks.
Dedicated to strict quality control and thoughtful customer service, our experienced staff members are always available to discuss your requirements and ensure full customer satisfaction. Equipped with the combination unit of 10,000 T/A of gamma-butyrolactone and 10,000 T/A of 1-Methyl-2-pyrrolidinone, we now are the biggest and leading hi-tech manufacturer of GBL and NMP in China, with the lowest prices and the best quality.

Up to now, we have got certificates of ISO9001 and SGS (RoHS, New Restricted Substance and non-halogen). As to Reach Registration, we are now in the stage of SIEF. Because of manufacturing characteristics of products, we adopt DCS to supervise and control all procedures of production, providing a strong guarantee for the consistency of process, performance of products, security of production and reduction of cost. Devoting ourselves to establishing a good brand figure and improving competence of products continuously, we are working hard to expand business and develop more specialized products. With excellent quality and excellent services, we aim to be a leading supplier in this trade.

We welcome customers, business associations and friends from all parts of the world to contact us and seek cooperation for mutual benefits.