In December 2023, Gamma Gas obtained the order of high-energy-saving PSA nitrogen generator (model GNC+59-600MF, nitrogen purity 99.999%, nitrogen flow 600mh, air-nitrogen ratio 4.5, one-step
process) through the general contractor Zhongdian System Construction Engineering Co., Ltd. The final owner of the project is Changchun Changguang Zhengyuan Microelectronics Technology Co., Ltd.
Gamma Gas won the high recognition of the general contractor and the final owner with its excellent energy-saving performance, outstanding cost-effectiveness, advanced multi-module structure design
and other advantages, and beat two world-renowned foreign brands to win this high-purity PSA nitrogen generator order.

Changchun Changguang Zhengyuan Microelectronics Technology Co., Ltd. is a semiconductor manufacturing enterprise transformed from Changchun Institute of Optics and Fine Mechanics, focusing on
back-illuminated CMOS image sensor wafer processing, and committed to providing BSI, SO and special chip-level processing services for 200mm and 300mm wafer manufacturing, breaking through the
foreign restrictions and blockade on high-end CMOS image sensor chips, and supporting the development of high-end manufacturing.

Gamma Gas and Changchun Changguang have always maintained a close cooperative relationship. Before this, Gamma Gas had already supplied two sets top-level energy-saving V series (GNV59-150MF)
and (GNP59-100MF) nitrogen generators.