Analyze the relationship between 'Glencore' and 'mining' within the context of the input sentence.
Options: brand, location of formation, legal form, industry

The concerns come two years after Glencore was granted approval to lift the rate of mining from 2.5 million tonnes of ore annually to 5 million tonnes and the yearly yield of zinc and lead bulk concentrate from 360,000 dry metric tonnes to 800,000 dry metric tonnes.
industry