The development of the Trans Kalahari railway line will be pivotal in the viability of the biggest thermal coal mining project in Botswana to date. Even with unguaranteed buyer markets for Botswana coal, emerging market economies such as India and China are set to become major consumers of coal globally, with projected increases in consumption by 2020.
Australian junior miner, Walkabout Resources, this week announced the results of a scoping study into the Takatokwane thermal coal project, in Botswana, estimated that the mine would cost $767 million (P7,5 billion) to develop, the biggest such project in the country to date.
The conceptual operation at Takatokwane was based on two open-pit strip mines, each delivering six-million tonnes a year of coal. Some of the product would be upgraded through a modular two-stage washing plant, and the project was expected to deliver three saleable products.
Takatokwane is located just 195kilometres from the capital, Gaborone, in the southern belt of the Central Kalahari Sub-Basin and is directly accessible by a well-maintained bitumen road. The area was previously drilled by BP Coal Botswana Exploration in the 1970’s and more recently, by Homeland Mining in 2008.
The scoping study was based on the over seven-billion-tonne Joint Ore Reserves Committee-compliant resource at Takatokwane, with the mine design focused on a target mining area where 748-million tonnes had been classified as indicated resource.
“It was always important that we understood the optimum profile for mining the huge Takatokwane deposit. We now know that we will be building large-scale, open-cut strip mines employing drag-lines and rope excavators that will produce coal for many years to come,” Walkabout MD Allan Mulligan was quoted as saying, in statement from the company.
While the scoping study had initially opted for a 12-million-tonne-a-year production rate, Mulligan noted that this could be significantly increased in modular extensions.
Based on the 12-million-tonne-a-year output, the Takatokwane mine was currently estimated to have a net present value of $850-million and an internal rate of return of 14 percent.
However, Mulligan noted that the development of the Takatokwane project remained dependent on the construction of suitable rail infrastructure to move the coal product, which had been targeted for sale to South African power stations and for export through the Port of Walvis Bay, in Namibia.
The government of Botswana is currently investigating the feasibility of the Trans-Kalahari rail project, and the project was slated for completion by 2019/20.
The railway line is expected to unlock the monetisation of Botswana’s coal resources, which are seen as a way to augment the depleting diamond resources that have been the mainstay of the country’s economy.
Aurecon, the consultant for the rail line project, has given the resultant capital expenditure costs at a total of USD14.2 billion (P136 billion), comprising USD8.6 billion for electrified rail, and USD1.9 billion for above rail, and USD3.6 billion for the port.
The finalisation of the Development Plan for the Trans Kalahari Railway line will be possible after the following are completed: Finalisation of Supply Chain Infrastructure; Master Plan mapping of clusters and connections to copper/manganese; Finalisation of the commercial model assessment for the TKR; Incorporating the commercial outcome from the mine to ship modelling; Finalisation of structure assessment and impact on Government of Botswana; Funding sources identified and the Project Memorandum being developed to engage with the market in the next stage.
Takatokwane has one tenement: PL035/2007 which consists of 500 square kilometres of land holding and is 100 percent owned by Wizard Investments (Pty) Ltd. Walkabout Resources Ltd (WKT) has earned 70 percent of Wizard Investments (Pty) Ltd through its work on the ground to date.
Takatokwane South consists of two tenements: PL157/2009 and PL160/2009; and is 100 percent owned by Triprop Energy (Pty) Ltd. WKT has a 40 percent interest and is earning 65 percent of Triprop Energy (Pty) Ltd.
In August 2012 the Company announced an upgrade to the maiden JORC Inferred Resource giving a combined total of 6.88 billion tonnes of raw coal and a washed Resource of some 3.6 billion tonnes.
In April 2013, the Company announced an Indicated Resource of 478 million tonnes within the Target Mining Area.
Completion of Phase 2 drilling over a targeted zone, where shallow and thicker coal seams coincided with a lower incidence of sulphur, highlighting a large area that would be amenable to large scale surface and strip mining methods, subsequently designated as the Target Mining Area.
In April 2013, the Company commenced with a Pre-feasibility Study over the combined Takatokwane Project, which is this latest coping study, is part of.