August Aluminum Billet Premiums in Southeast Asia Remained Steady Overall, Vietnam Edged Slightly Lower [SMM Analysis]

According to SMM's weekly premium assessment as of August 28, 2026, 6063 aluminum billet premiums in Southeast Asia remained stable overall in August. Premiums for homogenized aluminum billet in Cambodia were maintained at $275-325/mt, with a midpoint of $300/mt; premiums for homogenized aluminum billet in Malaysia were maintained at $250-275/mt, with a midpoint of $262.5/mt. Premiums for homogenized aluminum billet in Thailand remained stable throughout August at $210-250/mt, with a midpoint of $230/mt; premiums for non-homogenized aluminum billet in Thailand were maintained at $170-210/mt, with a midpoint of $190/mt.

Vietnam was the only market in August to see a notable adjustment. Starting from the August 21 assessment, premiums for Vietnamese non-homogenized 6063 aluminum billet were revised down from $190-220/mt, with a midpoint of $205/mt, to $175-220/mt, with a midpoint of $197.5/mt. CIF premiums for non-homogenized 6063 aluminum billet exported from China to Thailand were maintained at -$100/mt to +$100/mt, with a midpoint of $0/mt, indicating that Chinese supply continued to exert competitive pressure on local aluminum billet in Southeast Asia in terms of landed prices.

Overall, the August premium structure reflected a defensive market: premiums in major regions were largely stable but lacked upward momentum, the low end of Vietnamese premiums was revised down, and sustained competition from Chinese export supply indicated weak buying momentum, while sellers still faced pressure to remain flexible in offering price concessions.