Given the input sentence, please extract the subject and object containing a certain relation in the sentence according to the following relation types, in the format of "relation1: word1, word2; relation2: word3, word4". Relations include: product/material produced; manufacturer; distributed by; industry; position held; original broadcaster; owned by; founded by; distribution format; headquarters location; stock exchange; currency; parent organization; chief executive officer; director/manager; owner of; operator; member of; employer; chairperson; platform; subsidiary; legal form; publisher; developer; brand; business division; location of formation; creator.

Mining companies also gained ground, with Glencore (GLEN.L) the top FTSE stock as it rose 2.9 percent after copper prices climbed close to a one-month peak on cuts to mine supply and a revival in Chinese demand.

Answer: industry: Glencore, Mining