NVRO Metals Advances Commercial Deployment of the NVRO Process™ Through Successful Continuous Production Demonstration on Hecla Greens Creek Material

VANCOUVER, British Columbia, Aug. 28, 2026 (GLOBE NEWSWIRE) — NVRO Metals Limited (TSXV: NVRO | OTCQB: ESGLF | FSE: YGK) (“NVRO Metals” or the “Company”) is pleased to announce the successful completion of a continuous production demonstration campaign using material from Hecla Mining Company’s Greens Creek operation in Alaska as announced on 22 April 2026.

The campaign forms an important part of the Company’s collaboration with Hecla Mining Company to evaluate the NVRO Process™ as a potential commercial processing solution for Greens Creek tailings material. The campaign successfully demonstrated continuous operation using customer feedstock under representative operating conditions and generated engineering, operating and metallurgical data to support future commercial deployment and investment decisions.