Mosaic Idles Two Brazilian Phosphate Mines, Cites New Regulations
The Mosaic Co., Plymouth, Minn., on April 11 said Mosaic Fertilizantes will idle production at its Tapira and Catalão phosphate mines in Brazil in order to comply with new Brazilian regulations governing mine tailings dams. Mosaic said it currently has the rock and finished product inventory necessary to meet near-term market requirements, and that during this period and as necessary, it will also ship phosphates from its operations in Florida and rock from its Peruvian mine for use in Brazilian production to meet customer needs in Brazil, leveraging its global capacity.
The company said Mosaic Fertilizantes, with the technical approval of the National Mining Agency (ANM), last month filed an application for the extension of the deadline for submission of the Stability Condition Statements (DCE) for three of its dams. The requested extension was to allow expert consultants to finalize additional recommended studies and geotechnical analysis, which will be completed in April. The company did not receive final agreement from the ANM regarding the requested extension.
Without final agreement from the ANM, and in alignment with the new ANM standards, the company has implemented the Emergency Action Plan for Mining Dams (PAEBM) for the BL1 and BR dams in Tapira (MG) and the BR dam in Catalão (GO), which were classified as emergency level 1, the least critical of the three-category rating system.
The company said Mosaic Fertilizantes will make every effort to obtain the DCEs as quickly as possible. Geotechnical research, analysis with external consultants, and remediation plans will continue until the dams meet the new standards.
Mosaic reaffirmed that the dams do not present imminent risks of disruption and reiterated its commitment to the communities and regions where it operates.
The new regulations are in response to a major dam break that occurred recently at a Vale SA iron ore mine. Mosaic told analysts in an earnings call on Feb. 26 (GM March 1, p. 26) that it has 22 dams in Brazil, 11 of which are tailings dams. It said with respect to new regulations that went into effect on Feb. 18 that 21 of its 22 structures were in compliance, though two had upstream lifts that require remediation plans.
At the time, the company said one tailings dam at Araxa, while meeting old criteria, did not appear to meet the new regulations, and it agreed to keep that phosphate mine out of operation until the dam is remediated. In the meantime, it said the other 21 structures had a certificate of stability by external consultants. The company said it had arranged for third-party assessments by for all dams within the next 90 days.