(This article was originally published Sunday.)

 
 
   By Alex MacDonald 
 

CAPE TOWN--African countries should approach equity investment in infrastructure projects with caution, said a senior executive at the International Finance Corp. Sunday.

"Taking an equity stake in infrastructure projects should be carefully considered by any country, particularly those with limited financial resources," said Tom Butler, Global Head of Mining at the IFC, in an interview ahead of the Indaba mining conference.

"Taxes and concession fees can provide more stable revenue streams to governments and don't require up front investment by governments, thus freeing up public money for investments in things such as health and education, where private sector funding is not as readily available," he added.

Standard Bank Group Ltd. (STD.JO) estimates that African nations will need to spend more than $50 billion in the next 10 years on new rail networks alone to meet growing demand for mineral resources.

Some African governments have sought to use their own capital to develop infrastructure but the results have been mixed, with some companies raising concerns over project delays caused by transportation development delays. Mr. Butler said a multi-user transportation network that is privately owned but regulated by the government would prove to be a more efficient and effective way of allocating capital and generating a steady stream of revenue via taxes and concession fees.

Rio Tinto PLC (RIO, RIO.LN) last month wrote down most of the value of its $3.78 billion purchase of Mozambican coal assets in 2011 after failing to secure permits to barge coal down the Zambeze river. It is now considering other transport options, including a rail line, but the government is still working on creating a third-party concession framework for new lines in the country.

Meanwhile in Guinea, Rio Tinto is still waiting for clarity from the government on the terms of investment for its Simandou iron ore project, including how the government plans to finance its share of the rail and port infrastructure.

Rio Tinto signed an accord in April 2011 with Guinea to secure Rio Tinto's mining title over its two Simandou iron ore blocs in the south-east of Guinea. The accord gave the government the right to take up to a 35% stake in the project and a 51% stake in a special purpose vehicle for the project's 670 kilometer rail and port infrastructure.

A year later, Rio Tinto and Aluminum Corp. of China Ltd. (ACH, 601600.SH, 2600.HK), or Chalco, agreed to create a joint venture to develop and operate the Simandou mine. Through the joint venture, Rio and Chalco own a 50.35% and 44.65% stake respectively in the Simandou project while the remaining 5% is held by the IFC, a part of the World Bank.

When asked how his views on infrastructure equity ownership relate to Guinea, Mr. Butler said "Each country is unique. We are fully committed to working with Rio Tinto and the Government of Guinea on advancing the Simandou project, including the infrastructure component."

Write to Alex MacDonald alex.macdonald@dowjones.com

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