Employees work on the production line of a heavy machinery company in Tangshan, Hebei province, in December. (Photo: Agencies)

BEIJING — China's bulk commodity market reported growth expansion in January compared with the previous month, industrial data showed.

The China Bulk Merchandise Index, a gauge of domestic bulk commodity market growth, stood above the boom-or-bust line of 100 percent at 101.1 percent last month, up 1 percentage point, according to the China Federation of Logistics and Purchasing.

The sub-indices for bulk commodity supply and inventory went up to 102. 5 percent and 102.2 percent, respectively.

The sub-index for bulk commodity sales decreased to 99.5 percent, a four-month low, indicating continuous oversupply pressure.