A Milestone Year Against a Difficult Backdrop
June 2025 marked the 60th anniversary of New Zealand Steel’s production at Glenbrook, South Auckland. The milestone coincided with a challenging year — rising input costs and weak construction demand squeezed margins across the sector, and the broader economic slowdown that affected New Zealand’s building industry from late 2023 extended through much of 2025. Despite this, Metals NZ is entering 2026 with more confidence than the immediate environment might suggest.
The Electric Arc Furnace and Lower-Carbon Steel
New Zealand Steel’s electric arc furnace project — New Zealand’s largest-ever single-site emissions reduction initiative — will be fully operational in early 2026. The furnace will cut annual greenhouse gas emissions by approximately one million tonnes, replacing the coal-dependent ironmaking process with scrap-based steelmaking powered by electricity. The practical outcome for the construction industry is local availability of lower-carbon structural steel with more stable pricing than imported alternatives.
Alongside the EAF transition, Metals NZ is launching DCRB plate and reinforcing steel products sourced entirely from recycled scrap — supporting circular economy objectives and providing a credible lower-embodied-carbon option for projects requiring documented environmental performance. These products are expected to be commercially available in early 2026.
Three Drivers for 2026
Metals NZ identifies three factors likely to drive sector growth through 2026:
- Housing recovery: increased residential activity as interest rates moderate and consenting picks up, particularly in the medium-density sector where steel-framed construction is growing in share
- Infrastructure investment: a strong pipeline of government and commercial infrastructure projects, particularly in transport and utilities
- Renewable energy transition: significant steel requirements for wind, hydro, and transmission infrastructure as New Zealand accelerates its energy transition programme
Modular Steel and Innovation
Modular steel framework construction is gaining ground in New Zealand — lightweight, efficient, and well-suited to both residential and commercial applications. Projects like Somerset’s St John’s village (opened 2025) illustrate the approach at scale. Metals NZ is supporting this shift through partnerships with BRANZ, MBIE, universities, and construction sector stakeholders focused on skills development and sustainable product specification.
For contractors and specifiers, the advice is straightforward: engage now with the new lower-carbon product lines, understand the embodied carbon documentation available for green certification purposes, and plan supply chain arrangements ahead of the anticipated demand upturn.
