Summit Minerals (ASX:SUM) Shares Surge Over 22% on High-Grade Tantalum-Niobium Results at Equador Project

Wed 25 Jun 25, 03:03 AM | Team Kalkine

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Highlights:

SUM shares jumped 22.58% to AUD 0.038 on 25 June 2025 following metallurgical test results.

Test work confirmed high-grade tantalum and niobium amenable to simple density-based separation.

Second round of sampling planned to refine processing methods and enhance recoveries.

Summit Minerals Limited (ASX: SUM) saw its share price rise 22.58% to AUD 0.038 on 25 June 2025 after announcing promising metallurgical results from its Equador Project located in Brazil’s Paraíba and Rio Grande do Norte states. The company is investigating the project for tantalum (Ta) and niobium (Nb) potential, with early-stage results indicating the materials can be effectively concentrated using conventional separation techniques.

The recent test work, conducted by Independent Metallurgical Operations Ltd (IMO), focused on three previously identified samples SUMMET 8, 9 and 10. These samples were selected due to their elevated head assay values for tantalum, as confirmed by earlier bulk sampling. IMO applied two density-based methods: Heavy Liquid Separation (HLS) and Gravity (Wifley) Table separation.

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