Sterlite Industries (SLT) is India's Largest publicly traded Copper and Zinc producer. For my reference + Per Sterlite's 1Q08 Financial Results for the quarter ending March 31st, 2008:
* SLT's Sales Breakdown By Metal:
1.) Copper --> 48% of Total Sales
2.) Aluminum --> 17%
3.) Zinc and Lead --> 33%
4.) 'Others' --> 2%
* SLT's Pre-Tax Profit Breakdown By Metal:
1.) Copper --> 17% of Total Metal E.B.I.T. (earnings before interest + taxes)
2.) Aluminum --> 25%
3.) Zinc and Lead --> 62%
4.) 'Others' --> -4%
* SLT's 1Q08 Profit Margin was 19.5%...SLT's 1Q08 Sales increased by 8% year over year...1Q08 Profits rose by 15% yoy
http://www.sterlite-industries.com/admin/financial/SterliteDocument/F000000082.pdf
http://www.sterlite-industries.com/pdf/SIL_Q4_2008_Press_Release.pdf
A Sterlite copper smelter:
Data Courtesy: Sterlite's Investor Relations
Full Disclosure: I own shares of SLT.