Jiangsu Changhai Composite Materials Co., Ltd. released an announcement that its wholly-owned subsidiary Changzhou Tianma Group plans to carry out technical renovation and expansion at its 25 kt/a unsaturated polyester resin (UPR) production line, aiming to further improve the control level of the UPR intelligent production line, reduce production costs and enhance product competitiveness. With a total investment of RMB150 million, the project, upon completion will have 100 kt/a UPR capacity. Construction may last eight to 10 months.