The Latest

Tanzania’s Williamson Diamond Mine Production Up +18% in Q3 2018

October 23, 2018
1 minute read
Tanzania Williamson diamond production petra q3 2018

Petra Diamonds (LSE:PDL), the mining company which partially owns and operates the Williamson diamond mine in Tanzania, has published its Trading Update – Q1 FY 2019 Production and Sales Report, showing a production increase of 18% at the mine.

Williamson’s ROM production increased 18% to 100,278 carats (Q1 FY 2018: 85,213 carats), demonstrating the continued steady operational delivery of the mine.

However, the company notes that it remains in discussions with the Government of Tanzania in relation to the claimed VAT refund of USD25 million.

Petra Diamonds has a diversified portfolio with interests in three underground producing mines in South Africa (Finsch, Cullinan and Koffiefontein) and one open pit producing mine in Tanzania (Williamson).

Williamson, located south of the town Mwanza in northwest Tanzania, is the country’s only important diamond producer.

Tanzania Diamonds
In 2015, Tanzania was the 10th largest diamond producer in Africa after Botswana (17.3m ca), Angola (7.1m ca), South Africa (6m ca), the Democratic Republic of Congo (3.15m ca), Namibia (1.92m ca), Sierra Leone (0.5m ca), Zimbabwe (0.5m ca), Lesotho (0.35m ca) and Ghana (0.24m ca).

Want to know more about Mining in Tanzania? Our free Tanzania Business and Investment Guide 2026 covers Mining, plus regulations, key sectors, and investment opportunities — all in one place.

Download Free Guide
Tweet
Share
Share
Share
Related Posts
Anthony Mavunde Parliament Bunge
Read More

Tanzania’s 2026/27 Mining Budget Sets Ambition for Critical Minerals Leadership and Top-4 Global Niobium Producer Status

Tanzania's Ministry of Minerals has tabled a TZS 174.98 billion budget for FY 2026/27, with a revenue collection target of TZS 1.41 trillion from a sector whose GDP contribution has climbed to 11.9% and whose exports rose 31.1% to USD 5,401.9 million in 2025. The budget prioritises critical and strategic minerals, the Panda Hill niobium project expected to make Tanzania a top-4 global producer, the Buzwagi value-addition hub, and expanding geophysical survey coverage to 50% of the country by 2030.
Tanzania mineral processing
Read More

Tanzania to Build Mineral Processing Center in Shinyanga to Boost Value Addition

The Tanzanian government plans to establish a Mineral Processing Center in Mwakitolyo, Shinyanga Region, to deepen mineral value addition and expand local participation in the mineral value chain. Deputy Minister for Minerals Dr. Steven Kiruswa highlighted the initiative in Parliament, emphasizing the need to build technical capacity among youth and women from exploration to processing.
Tanzania Mahenge Graphite Project Map
Read More

Tanzania Mahenge Graphite Project Early Works to Complete by Mid-2026 Ahead of Final Investment Decision

Black Rock Mining's early works program at the Mahenge Graphite Project in Tanzania's Ulanga region is nearing completion, with final earthworks and resettlement activities expected to wrap up by late Q2 2026. Community compensation for the lower access road has been completed, the 220kV transmission line survey is finished, and all early works pricing has been validated against the 2022 FEED, positioning the project for a rapid construction ramp-up once full funding and a Final Investment Decision are secured.