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MINING - Jean Boulle Group

The Boulle Mining Group has an established record of discovering and developing high-grade, globally significant mineral resources projects throughout the world.

BMG knows first-hand that responsible exploration and development of mineral deposits improves the lives of the people and benefits the countries where it operates by providing jobs, economic development and revenue for advancing the welfare of the general population. Successful mineral production is not enough. Mineral development is only truly successful when it benefits the people in the country in which it occurs.


America Mineral Fields Inc. (AMF) was a Toronto Stock Exchange company established by Mr. Boulle in 1995. AMF acquired the world-class Kolwesi copper/cobalt tailings and Kipushi zinc deposits in the Democratic Republic of Congo. The Kolwezi deposit is purportedly the world’s third largest cobalt resource with combined tailings reserves estimated at 112.8 million tonnes at an average grade of 0.32% cobalt and 1.49% copper. It has been projected to produce up to 42,000 tonnes of copper and 7,000 tonnes of cobalt per year. In 2006, AMF (renamed Adastra Minerals) merged with First Quantum Minerals, Ltd. in a transaction valued at approximately $275 million CDN (2006 CDN dollars).


Diamond Fields Resources, Inc. (DFR), the predecessor to Diamond Fields International Ltd. (DFI), was a Toronto Stock Exchange company founded by Jean Boulle in 1993. In 1994, DFR discovered the one of the largest and richest nickel/cobalt deposits in the world at Voisey’s Bay, Canada. The deposit is considered one of the most substantial mineral discoveries in Canadian history and it was acquired by Vale/Inco in 1996 for $4.3 billion USD. It is currently the world’s second largest nickel producer.


Through Spirit Resources SARL, the Boulle Mining Group is the largest shareholder of Diamond Fields International, Ltd. (DFI), a TSX Ventures Exchange Company (TSXV:DFI) with exploration and mining experience in diamonds, gold, silver, zinc, copper, nickel and other metals. DFI has operations and/or interests in Namibia, Madagascar, and the Red Sea. DFI is the successor to DFR and is perhaps best known for its expertise in marine mining, being one of only a handful of resource companies to successfully commercially extract mineral resources (diamonds) from the ocean.


Sierra Rutile Limited (formerly Titanium Resources Group) is a London Stock Exchange (AIM) company established by Jean Boulle in 2004, which, when it was listed, comprised Sierra Rutile Limited, its titanium subsidiary and Sierra Minerals Limited, its bauxite subsidiary. Sierra Rutile Limited was acquired by Iluka Resources in 2016 for A$375m. Sierra Rutile Limited owns and operates the Sierra Rutile titanium dioxide mine in Sierra Leone and directly employs approximately 1,000 people. With a license area covering 580 square kilometers, the mine contains one of the world’s largest and richest high-grade titanium dioxide resources, with measured, indicated and inferred resource base of 841 million tonnes grading an average 1.01% rutile. It is the world’s largest primary rutile mine. The company has constructed a self-sufficient mine which maintains its own infrastructure and ancillary services, including power, water and sanitation, housing, roads, and port facilities. In 2013 Sierra Rutile was the world’s second largest producer of high-grade rutile, accounting for approximately 23% of world production. The company also produces approximately 32,000 tonnes of ilmenite and approximately 12,000 tonnes of zircon per year.

Sierra Minerals Ltd. (SML) operates the Sierra Minerals bauxite mine in Sierra Leone. Covering a license area of approximately 321 square kilometers, the mine produces approximately 1,200,000 tonnes of bauxite per year and employs approximately 350 people. In 2008, Sierra Minerals was acquired from the Jean Boulle Group by Vimetco NV., the 7th largest aluminum producer in the world.


Boulle Titanium, Ltd., a member of the Boulle Mining Group, was the largest shareholder of World Titanium Resources Limited, an Australian Stock Exchange company (ASX:WTR) which returned to private ownership in January 2017 when it voluntarily delisted from the ASX.

As World Titane Holdings, it is developing the high-grade Tier-1 Toliara Sands Titanium Project north of Toliara in southwest Madagascar. The first phase of the Project calls for the development of the Ranobe deposit and is projected to produce 400,000 tpa of ilmenite and 43,000tpa of rutile/zircon concentrate per annum over an initial 20 year mine life. This first phase utilises approximately 20% of the 707 million tonnes of JORC Resource defined at Ranobe. The overall THM grade of 6.54% at Ranobe is high for minerals sands deposits standards and the initial Ranobe mine plan focuses on a higher-grade area of 145 million tonnes averaging 8.1% THM, resulting in one of the highest in-situ ore values in the mineral sands sector. The deposit has no overburden and very low slimes (<5%).

World Titane Holdings has a total exploration target of more than 4.7 billion tonnes in the Toliara Sands Exploration permits at Ranobe, Ankililoaka, Basibasy and Morombe, including the 707 million tonne at 6.5% THM JORC Resource at Ranobe.