Teck Resources Limited. Teck is Canada''s largest diversified mining company and is committed to responsible development. It has major business units focused on copper, metallurgical coal, zinc, gold and energy. Shares are listed on the TSX under the symbols TECK.A and TECK.B and on the NYSE under the symbol TECK.. teck cominco,tech cominco,tck.a,tck.,tck,Vancouver mining company,mines,mining,zinc mining,gold mining,mining contractors,mining jobs,career in mining,indium mining,germanium,molybdenum,oil sands,Canada mining company,mine sustainability,coal mining,mining engineering jobs,copper exploration,mining jobs,sustainability in mining,copper mining,gold mine,silver mining,Canada mining,Canada mine