Swiss commodities giant Glencore took advantage of the release of its half-year results Tuesday to reaffirm its interest in buying Canadian coal firm Teck Resources amid falling coal prices. In a report detailing its results, the Swiss group said it wanted to ensure "a transaction with Teck would benefit Canada", once again reiterating its hostile takeover bid which the Canadian miner has rejected. Glencore, which is active in both commodity trading and mining, had unveiled a nearly $23 billion offer in early April for Teck Resources to combine their coal and metals activities, and then spin them off. The Canadian firm twice rejected the offer, with support of its two largest shareholders. In June, Glencore made an alternative offer to buy Teck's steelmaking coal business, known as Elk Valley Resources (EVR) for cash.