History
Banro built two gold mines on a 210 km belt in eastern Congo, funded by secured notes and preferred shares, but neither reached its forecast output by January 2015.
2008-2011: Planning and building Twangiza
Banro set out to build gold mines in eastern Democratic Republic of the Congo. In August 2008 a pre-feasibility study on its Twangiza project in South Kivu pointed to a mine averaging 345,125 ounces a year for the first three years and 195,772 over its life, with a post-tax net present value of US$352m and a 20.5% return. The authors also warned that much of the indicated resource rested on widely spaced drilling and needed infill drilling to firm up the early mine schedule.
The record then jumps to 2011. By 1 April Banro held US$94m in cash against a US$209m budget for the first phase of Twangiza, about US$25m more than the cost to complete. A non-binding agreement with China Gold International Resources to negotiate a joint venture over a second phase and a hydro power project never became a firm deal. In June, infill drilling at Namoya, the planned second mine, hit strong gold intercepts that were not in the January 2011 estimate. On 11 October Twangiza poured its first gold, the first new commercial gold mine in the country in more than half a century. Management guided to about 120,000 ounces in 2012. In December, Namoya's measured and indicated resource rose 39% to 1.58 million ounces, on more tonnes at a lower grade.
2012: Notes, and a slow Twangiza ramp-up
In early 2012 an updated assessment put the first phase of Namoya at 122,000 ounces a year for five years, costing US$148m to build. To pay for it, Banro sold senior secured notes: a placement first set at up to US$125m, raised to US$175m. The notes paid 10% and were due 1 March 2017, each unit carrying warrants, 8.4 million in total, exercisable at US$6.65. The money was for Namoya, repaying a credit facility and hydro power work. The issue closed on 2 March, with Namoya targeted for commissioning in the first quarter of 2013.
Twangiza ran into trouble. A failed motor on its No. 1 ball mill, caused by excessive vibration from an inadequate support frame, held the plant at about 60% of capacity and pushed commercial production from the first quarter to the third. The mine stayed cash-flow positive. Banro declared commercial production from 1 September 2012, eleven months after first gold.
2013-2014: More capital and the Namoya delay
In February 2013 Banro said it had arranged up to US$90m without issuing common shares: gold-linked preferred shares for BlackRock World Mining Trust and bank facilities. Group measured and indicated resources had just gone up 41% to 10.18 million ounces. By April the financing plan had changed. It priced 50,218,634 common shares at C$1.35 for C$67.8m, US$2.9m of Series A preference shares and a US$30.0m placement of preferred shares in a Barbados subsidiary, all closed on 25 April.
Namoya poured its first 320 ounces on 30 December 2013, about a year later than promised. In February 2014 Banro announced US$40m of 8% convertible preferred shares, taken entirely by Gramercy Funds Management, to ease near-term liquidity and repay bank loans. The first reserve estimate in March gave Namoya 1.34 million ounces and lifted group reserves 53% to 2.36 million. Twangiza's reserve fell 33% to 1.03 million, and group measured and indicated resources fell to 8.35 million ounces. A proxy contest by dissident shareholder Liberty Street Capital was withdrawn on 26 June, the day before the vote. In July Banro said Namoya's ore held more fine material than its wet circuit could handle, so the plant needed modifying and peak production would slip.
2015: Where it stood
On 5 January 2015 Banro reported its best quarter since it began producing: 38,236 ounces, of which Twangiza produced 29,445 and Namoya 8,791. Twangiza's 2014 output of 98,184 ounces was 19% above 2013's 82,591, but it had still not reached the 120,000 ounces a year forecast for 2012. Namoya's agglomeration drum, needed to fix the fines problem, was still in transit to site. The US$175m notes remained due in March 2017. The record ends there.
Written from the 22 story beats below (2008 to 5 Jan 2015), which come from the company's own announcements and filings.