Commodity2005200620072008200920102011
Tin waste & scrap$5,070,715$19,758,659$30,869,149$26,386,624$16,260,024$42,241,811$59,304,403
Total$5,070,715$19,758,659$30,869,149$26,386,624$16,260,024$42,241,811$59,304,403