The table shows the results of a survey of the leading refined producers carried out by ITRI. Of the companies covered, half reported a decline in production last year, including three of the big four. The two largest companies reporting increases were the ASEAN custom smelters and refiners, and . Both were helped by increasing Indonesian refining business, which in turn reflected the stimulus to small-scale mining activity provided by record high prices last year. In contrast, the two integrated Indonesian producers ( as shown and PT Tin, which produced 6,332 tonnes) both reported lower production. The Chinese companies experienced a mix of gains and losses, while all the South American companies reported lower output. 

Company

2011
production
(tonnes)

% change
Tin (China) 56,174 -5.1%
Malaysia Smelting Corporation 40,267 +3.9%
PT Timah (Indonesia) 38,142 -5.6%
(Peru) 30,205 -16.2%
Thaisarco () 23,864 +1.5%
Yunnan Chengfeng (China) 15,430 +9.0%
(China) 15,375 +7.5%
EM (Bolivia) 10.960 -5.4%
Chimique (Belgium) 10,007 +0.6%
Gejiu Zi-Li (China) 8,600 -4.4%

The biggest decline was reported by Minsur, following an enforced cut-back in mining rates in the first half of the year while its tailings storage facilities were investigated. The company’s 2012 production in Peru is expected to be at a very similar level, although output from its Taboca subsidiary in Brazil should increase significantly from the very low levels of recent years. The other likely increases this year may come from China Tin and Metallo Chimique’s secondary smelter in Belgium, both of which have increased their furnace capacity.