Mining stocks were under the cosh, with Anglo American (LSE: AAL.L - news ) , Glencore (Amsterdam: GX8.AS - news ) , BHP Billiton (NYSE: BBL - news ) and Antofagasta (Other OTC: ANFGF - news ) all firmly lower as metals prices fell across the board, with the exception of tin and nickel.
Utilize the input text as a context reference, choose the right relationship between 'Glencore' and 'Mining' from the options.
Options: developer, industry, headquarters location, parent organization