Nickel surplus to widen through 2026: INSG outlook for miners and metals markets

INSG(

The nickel surplus to widen through 2026 is reshaping expectations for miners, traders and stainless producers worldwide. According to the latest INSG forecast, the nickel surplus to widen through 2026 will see production consistently outpace usage, even as global economic activity proves more resilient than expected. As a result, the nickel surplus to widen through 2026 is set to reach 209,000t in 2025 and 261,000t in 2026, with primary output rising to 3.81mn t this year and 4.09mn t in 2026 against usage of 3.6mn t and 3.82mn t.

Stainless demand supports nickel, but batteries lose momentum

Nickel demand remains supported by stainless steel, but battery growth has clearly cooled. Higher stainless steel output continues to underpin core nickel usage, particularly in Asia and Europe. However, battery demand has slowed as automakers and cell producers shift towards non-nickel chemistries such as LFP and accelerate plug-in hybrids over pure battery electric vehicles. Therefore, the high-growth battery narrative has softened, easing pressure on high-purity nickel sulphate demand.

Meanwhile, this demand shift is forcing producers and investors to reassess project pipelines focused on battery-grade nickel. Margins are under strain where costs are high and product mixes are heavily exposed to the EV segment. In this environment, stainless steel remains the anchor sector, but it cannot fully absorb the excess tonnes entering the system. This imbalance feeds directly into the widening surplus and keeps a lid on any sustained price rally.

Indonesia drives supply growth as others retrench

On the supply side, Indonesia remains the dominant driver despite tighter regulatory control. The government has delayed permit approvals, seized non-compliant land and punished firms that fail reclamation duties. However, the INSG believes these interventions have only created temporary disruptions, with overall Indonesian nickel output still expected to increase through 2026. This continued expansion reinforces the structural surplus and raises competitive pressure on higher-cost regions.

Outside Indonesia, weaker profitability has already forced several producers to scale back or suspend operations. In China, the shift from nickel pig iron towards more refined cathode output is forecast to continue as the industry optimises for flexibility and value. Nickel sulphate production is expected to ease in 2025 as battery demand softens, before recovering in 2026 when market conditions stabilise. For now, prices remain trapped between steady stainless demand and a widely recognised surplus in exchange-traded Class 1 inventories, with three-month nickel recently trading near $15,480/t.

Financial conditions are improving, with global inflation forecast to decline across most G20 economies by 2026. Even so, the INSG warns that tariffs and trade measures could offset some macro tailwinds by adding friction to investment decisions, supply chains and downstream demand growth. If policy risk rises, it may delay project sanctions and accelerate closures at the margin, but the current surplus path remains firmly in place.

The Metalnomist Commentary

The INSG nickel surplus outlook underscores a market where supply discipline lags structural investment made during the last bull cycle. For producers, cost reduction, product differentiation and downstream partnerships will be critical to survive a prolonged surplus. For consumers in stainless and batteries, the coming years offer a rare window to secure long-term nickel units on favourable terms before the next demand wave arrives.