African Mining January - February 2019 | Page 20

In conversation with What is significant about this mine? How many mineralised zones are you targeting? The mine is the biggest employer in the Namibian mining industry. Its contribution to the Namibian economy in terms of taxes, social investment, and skills development is substantial. Small and medium-sized enterprises are benefiting, and the mine is a significant contributor to the country’s GDP. On a global scale, in terms of the size of the operation and considering both the current and forecasted production, Husab can rightly be regarded as one of the biggest producers in the world. We have five potential mineralised zones on the property, of which we are currently exploiting two zones: Zone 1 and Zone 2. Both are mined through two opencast operations very close to each other. How does a massive mine like Husab keep the wheels turning in an extremely difficult economic environment? My motto in mining is efficiency. The only factor you can control, and manage, is efficiency. It is only after you fail in being efficient that you can say: well, let’s close the mine. So, in our strategy, there is a big focus on cost efficiencies. What is the life of mine? We are currently planning around a 20-year life of mine and at the same time, we are also continuing with exploration work on two Exploration & Prospecting Licences (EPLs) close to our current licence. Uranium, however, is different from gold, for which there is a spot price on the international markets. Uranium mines, in many cases, enter into medium- to long-term contracts on a guaranteed price, so even if the price fluctuates, it doesn’t really matter. 18 AFRICAN MINING JANUARY - FEBRUARY 2019 In this area, there are six different formations: the Kalahari forms the overburden, below the Kalahari is the Khan and then Chuos, followed by the Rossing, Karibib, and the intrusive layers, which occur a lot deeper. The ore is concentrated around the Rossing formation. The ore doesn’t seem to occur in any of the formations below the Rossing formation. Our two open pits have now reached depths of close to 90m and 140m, respectively. Which mining methods do you use in the two pits? Both sites are opencast operations. We use a conventional truck and shovel method to mine the ore body with hydraulic and electric shovels. The mining fleet consists of six shovels that include three CAT 6060 face shovels and three CAT 7495 electric shovels. In total, we have 26 trucks of which 23 are the Komatsu 960 E, and three are the NTE 330, which is a Chinese-manufactured truck. There are 12 drill rigs in the pit, and here we also have a combination of diesel and electric rigs: there are three CAT MD6640 electric drill rigs and four CAT MD6290 diesel-driven drill rigs. In addition, we operate one CAT MD 6650 and four Atlas Copco Rock L8s. The Rock L8 is mostly for smaller-diameter www.africanmining.co.za