Take context from the input text and decide on the accurate relationship between 'Teck Resources' and 'coal' from the options provided.
Options: product/material produced, founded by, stock exchange, developer

Our analysts have initiated coverage on the coal industry with focus on the following companies: Vale S.A. ( VALE ), Peabody Energy Corporation ( BTU ), Teck Resources Limited ( TCK ), Arch Coal Inc. ( ACI ), and Rio Tinto PLC ( RIO ).
product/material produced