New Zealand has opened a safeguard investigation into imports of certain aluminium extrusion products, according to a notification circulated by the country to the World Trade Organization Committee on Safeguards on May 28, 2026. The investigation was initiated by New Zealand’s Ministry of Business, Innovation and Employment (MBIE) and relates to aluminium alloy profiles, bars and rods manufactured using extrusion processes. The products under review fall under tariff classifications 7604.21.00 00B, covering hollow profiles, and 7604.29.09 00F for other aluminium extrusion products. According to the notification, the investigation covers extrusions produced from alloys belonging to the 1, 2, 3, 5, 6 and 7 series under the Aluminium Association classification system.

New Zealand’s Ministry of Business, Innovation and Employment (MBIE) has initiated a safeguard investigation into certain imported aluminum extrusion products and notified the WTO Safeguards Committee on May 28, 2026. The investigation covers aluminum alloy profiles, bars and rods produced through extrusion processes, including finished and unfinished products made from 1, 2, 3, 5, 6 and 7 series alloys. Products with anodized, painted and other surface treatments are also included. Imports from Australia and Singapore are excluded under existing free trade arrangements. Markets believe the move reflects growing global trade protection measures and could affect international aluminum extrusion trade flows.

[SMM Aluminum Express News] Contact Energy has signed a non-binding power supply agreement with Rio Tinto to support the restart of the idle Line 4 potline at the New Zealand Aluminum Smelter in Tiwai Point. The restart would require around 50 MW of additional electricity and add approximately 30,000 tpy of aluminum production, while supporting development of Contact’s Southland Wind Farm. Rio Tinto estimates the project could generate around NZ$100 million annually in additional export revenue for New Zealand.

[SMM Aluminum Express News] New Zealand has launched a WTO safeguard investigation into imports of certain aluminum extrusions, citing concerns that rising import volumes may be causing or threatening serious injury to the domestic industry. The investigation covers selected aluminum alloy bars, rods, and profiles, and could lead to temporary import restrictions if material injury is confirmed under WTO safeguard rules.

Rio Tinto plans to restart the idle Line 4 potline at the New Zealand Aluminum Smelter (NZAS) in Tiwai Point and has signed a letter of intent with Contact Energy for a power purchase agreement. If finalized, the potline could resume operations in 2030. The line has been idle since 2020 and is expected to add about 30,000 tones of aluminum production annually once fully operational. Rio Tinto said the restart could contribute around NZD 100 million (about USD 59 million) annually to the local economy while strengthening New Zealand’s aluminum industry and energy cooperation.

Futures: Overnight, LME lead opened at $2,016/mt, rising first then falling during the Asian session with a high of $2,021/mt. It then fluctuated downward during the European session, dipping to $2,000/mt near the close, and finally settled at $2,001/mt, down 0.72%. Overnight, the most-traded SHFE lead 2607 contract opened lower with a gap at 16,690 yuan/mt, briefly touching a high of 16,710 yuan/mt early in the session. After bulls reduced positions, it fluctuated downward to a low of 16,580 yuan/mt, and finally settled at 16,615 yuan/mt, down 0.69%. On the macro front: Samsung's union approved a wage agreement, averting strike risks. Reports indicated that TSMC will raise 3nm prices by 15% in H2, with a potential further 10% increase next year. The Reserve Bank of New Zealand kept interest rates unchanged for the third consecutive time, signaling that earlier and larger rate hikes may be needed. EU sources: EU member state governments have approved legislation to implement tariff reductions on US goods imports. China's State Administration for Market Regulation deployed local market regulators to carry out a special campaign on credit-empowered rectification of "involution" competition, May-December. ChangXin Technology's STAR Market IPO was approved by the listing committee. HKEX: launched a full-market trading fee waiver for gold futures. NBS: From January to April, total profits of China's above-scale industrial enterprises reached 2,435.84 billion yuan, up 18.2% YoY. From January to April, rapid development of semiconductor-related industries drove profit growth in electronic specialty materials manufacturing, optical fiber manufacturing, and optoelectronic device manufacturing by 601.7%, 347.6%, and 51.0%, respectively. : Circulating cargoes in the Jiangsu, Zhejiang, Shanghai market were limited, with few quotations from suppliers. SHFE lead continued to hold up well yesterday, and suppliers showed moderate willingness to ship, though mainly cargoes self-picked up from production site of primary lead smelters, with relatively firm quotations. Secondary lead smelters shipped along with the market, with some quotations turning to discounts. Secondary refined lead was quoted at premiums of -25~0 yuan/mt against SMM #1 lead, while a few regions quoted at premiums of +50 yuan/mt. As lead prices rebounded, downstream enterprises were cautious about purchasing at high prices, with some enterprises negotiating more. Only cargoes at large discounts (against the most-traded SHFE lead contract) saw transactions. On the inventory front: On May 27, LME lead inventory decreased by 1,350 mt to 284,350 mt. As of May 25, total SMM lead ingot social inventory across five locations decreased by 3,200 mt compared with May 18. Lead price forecast for today: End-use demand for lead-acid batteries weakened, with new battery inventory accumulating at stores and scrap battery recycling volume remaining low. Frequent market sales promotions have dampened manufacturers' willingness to purchase lead ingots. Coupled with several secondary lead enterprises planning to resume production after maintenance in early-to-mid June, factors pressuring lead prices have converged in the short term. Going forward, focus should be placed on scrap battery supply and its impact on the pace of enterprise production resumptions. Data source disclaimer: Except for publicly available information, all other data are processed by SMM based on publicly available information, market communication, and SMM's internal database models. The data are for reference only and do not constitute decision-making advice.