SMM surveys major producers in China’s base metal market every month to get first-hand production data, and the following table shows latest output data for January 2017.

	Jan.	YoY	Dec.	Feb. (E)
Copper cathode	631	4.3%	674	627
Alumina	5584	21.7%	5471	5180
Aluminum	3038	22.0%	2950	2759
Primary Lead	249	-7.42%	255	252
Refined Zinc	435	1.2%	465	442
Nickel cathode	12.1	1%	14.3	11.6
NPI	34.3	24.7%	36.4	33.8
Refined Tin	15.1	17.9%	15.6	15

Source: SMM

Unit: 1,000 tonne