西部牧业：公司下属乳制品加工企业主要采用自产自销模式，仅有少量全脂奶粉代加工业务

Core Viewpoint - The company has a limited milk powder contract manufacturing business and does not plan to expand its milk powder production lines at this time [2]. Group 1: Company Operations - The company operates through its subsidiaries, Huayuan Dairy and Tianshan Yunmu Dairy, which have production lines for adult milk powder and infant formula [2]. - The company has launched several products, including whole milk powder, organic whole milk powder, organic A2 whole milk powder, probiotic multi-nutritional milk powder, and Kazakh milk tea powder, along with five series of infant formula [2]. - Currently, the main business model of the company's dairy processing enterprises is self-production and self-sale, with only a small amount of whole milk powder being produced through contract manufacturing [2].