Glencore reported an 86% surge in first-half earnings and unveiled fresh shareholder returns alongside plans to join the Australian Securities Exchange in October.

The commodities firm's marketing division hit near-record levels as Middle East conflict-driven volatility across oil, LNG and freight markets boosted its marketing division to near-record levels.

"We are pleased to report a strong production performance for the first six months of the year, where our key assets largely performed in line with expectations and previously communicated guidance," chief executive Gary Nagle said.

Glencore reiterated unchanged full-year 2026 production guidance after first-quarter own-sourced copper rose 19% to 199,600 tonnes while zinc and cobalt fell amid mine closures and DRC export quotas.