Ian Waldie by Vanessa Desloires Glencore's true value has analysts guessing Glencore shares routed amid debt concerns Markets Live: $35b wiped off ASX Shares in Australia's biggest mining company, BHP Billiton, have fallen to a seven-year low after being caught up in a rout of rival Glencore, which lost 30 per cent of its share price overnight.
In the context of the input sentence, determine the relationship between 'Glencore' and 'mining'.
Options: industry, director/manager, developer, chief executive officer