Join us at the 2025 Sulphur + Sulphuric Acid Expoconference in The Woodlands, Texas, 3-5November, for a truly global gathering of the sulphur and sulphuric acid community, where leading market and technology experts and producers will gather to connect, share knowledge, exchange ideas and learn about market trends and the latest developments in operations, technology, processes and equipment.
In this CRU Insight, Peter Harrisson reports on how battery materials have become a powerful driver of sulphur consumption growth.
CS Combustion Solutions introduces the SR-P sulphur atomiser nozzle to the sulphuric acid process, combining the high-quality atomisation of ultrasonic systems with the affordability and simplicity of pressure atomisers.
CRU's analyst Viviana Alvarado discusses the effect of smelter outages and maintenance, a copper concentrate shortage, and Asian capacity ramp ups, on sulphuric acid supply and prices.
Metso describes how digital solutions can profit from the deep integration of using a digital process twin in sulphuric acid technology, helping to improve operation, monitoring and reporting.
The progressive closure of smelter capacity in Australia poses potential problems for acid consumers across the country.
Kazakhstan Zinc (KazZinc) is progressing with plans to reduce sulphur dioxide emissions from its Ust-Kamenogorsk site following an environmental audit in December 2024 as a result of smogs caused fugitive emissions which forced residents to stay indoors. The site has reduced emissions from 69,000 t/a in 2011 to 15,000 t/a, but plans to invest $210 million in in new technologies, including sulphur dioxide recovery systems and upgraded filters for solid particle capture. The key measure is the modernisation of gas purification units which is expected to reduce SO2 emissions by 2,200 t/a by 2026. Another important initiative is the construction of the “Hydropolimet” workshop at the KazZinc Ridder metallurgical complex, which aims to reduce sulphur dioxide emissions by 714 t/a.
• Global sulphur prices are expected to experience decreases over the next few weeks. Buyers in Asia report that they are covered for contracted supply throughout July, and domestic prices in China are likely to decrease further, putting downward pressure on sulphur prices.
The mid-year negotiations between Antofagasta (AMSA) and Chinese smelters have concluded with a historic settlement of $0/0¢. While unprecedented, the outcome is not surprising, as it lands slightly above the midpoint of the believed negotiating range, from -$15/-1.5¢ proposed by Antofagasta +$10/1.0¢ from the Chinese smelters. Moreover, this result aligns with market participants' rumours circulating prior to the agreement. Separately, rumours suggest Q3 contract negotiations between one top miner and Chinese smelters concluded at levels ranging from -$25/-2.5¢ to (+)$5/0.5¢.
Ballance Agri-Nutrients, the New Zealand farmer and grower co-operative, says that it has entered into consultation on a proposal to cease manufacturing of sulphuric acid and single super phosphate (SSP) at its Mount Maunganui site. The proposals envisage net job losses of 62 roles, but the intention is for the co-operative to remain onsite utilising the proximity to the port for nutrient storage and distribution, and for its national support office. Ballance would continue to manufacture phosphates at its Awarua facility in Invercargill and urea at its Kapuni facility in Taranaki. Ballance CEO Kelvin Wickham says this proposal is part of a wider process the organisation has been going through over the past year to get ahead of changes in the sector and identify future opportunities to support New Zealand farmers and growers. “In the coming years, we expect to see an increased range of products and services that more efficiently and effectively deliver essential nutrients for farmers and growers, which will result in reduced overall demand for single super phosphate from historical peak volumes,” he said. “The number of existing facilities currently making this product in New Zealand means there is an overcapacity of supply. Our current facilities at Mount Maunganui also require substantial investment to keep them operating reliably and will face increasing regulatory constraints to be able to operate heavy manufacturing into the future.”