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.

A number of mining companies including Glencore (Xetra: A1JAGV - news ) , Kumba Iron Ore (Other OTC: KIROY - news ) , Sibanye Gold, Lonmin and Anglo American Platinum have said they plan to cut staff in the face of depressed prices and rising costs, but face pressure from unions and the government to maintain jobs.

Answer: industry: Glencore, mining; industry: Lonmin, mining