SHANGHAI, Jan 20 (SMM) – SMM data shows that the zinc ingot social inventories across seven major markets in China totalled 103,000 mt as January 20, up 23,900 mt from a week ago (January 13) and up 13,700 mt from this Monday (January 16). In Shanghai, the inventory continued to accumulate with stable arrivals and basically no outflows. In Tianjin, the trades in the market were slack as most downstream enterprises were closed for the CNY holiday. The low outflows from warehouses added to the inventory in Tianjin. In Guangdong, the arrivals in the market were concentrated in the first half of the week, and the trades were rather muted. As a result, the inventory in Guangdong rose still. Taken together, inventories in Shanghai, Guangdong and Tianjin rose 12,200 mt, and inventories across seven major markets in China gained 13,700 mt.