[1/2] The logo of commodities trader Glencore is pictured in front of the company's headquarters in Baar, Switzerland, July 18, 2017. REUTERS/Arnd WiegmannApril 19 (Reuters) - Glencore (GLEN.L) has told Teck Resources (TECKb.TO) shareholders it is willing to improve its $22.5 billion takeover offer, raising pressure on the Canadian miner to ditch a restructuring plan and sit down at the negotiating table. In an open letter on Wednesday, Glencore said it would consider taking the offer to Teck's shareholders directly if the board failed to engage. "With engagement, we could improve our proposal's terms and value, which would be in the best interests of all Teck shareholders." "The vote (on Teck's restructuring plan) is highly likely to go through without an official bump in terms (from Glencore)," Ben Cleary, portfolio manager at Tribeca Global Natural Resources Fund, told Reuters.

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