In the context of the input sentence, determine the relationship between 'Glencore' and 'mining'.
Options: parent organization, member of, platform, industry

Having transformed Glencore from a poorly understood commodities trader based in Baar into one of the world's largest resources companies through the spectacular $US60 billion float four years ago and the takeover of mining group Xstrata in 2013, the hard-nosed South African was lauded as a savvy deal maker.
industry