[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 Wiegmann/File PhotoLONDON, Dec 6 (Reuters) - Shares in miner and trader Glencore (GLEN.L) fell as much as 3.5% on Tuesday after 2023 production guidance across all the commodities it mines missed consensus estimates. The company gave guidance towards copper production of 1.04 million tonnes in 2023, down from 1.06 million this year and compared to a consensus of analysts at 1.124 million tonnes. Glencore expects 2022 EBITDA (earnings before interest, tax, depreciation and amortization) at $28.7 billion and free-cash-flow at $14.7 billion. Roughly 20% of total copper output comes from the mine.

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