National Banks out look on B2goldHIGHLIGHTS Fekola pre-commercial production margin surprises to the upside driving a sizable financial beat. Q4/17 CFPS b.f. w/c adj. was US$0.12 (NBF/cons. US$0.06/$0.05) and a sizable beat after including a US$73 mln (US$0.08/share) boost from pre-commercial sales net of costs. As typical, we ascribed no margin to pre-commercial production and thus the boost is a positive surprise. Per IFRS accounting standards, margin on pre-commercial sales is not reported on the income statement or CFO, but is logged as an item on CFI. Nevertheless, the pre-commercial margin reflects Fekola outperformance and further translates into a higher-than-expected Q4/17 cash balance of US$148 mln (NBF est. $108 mln), positioning BTO for repayment of US$259 mln convertible notes in Oct 2018. Fekola costs impress and drive margins on Q4/17 production. Total cash costs of US$611/oz (NBF est. US$567/oz) a modest miss on underperformance at La Libertad and El Limon, with partial offset by a beat at Otjikoto and Fekola. At Fekola, total cash costs were an impressive US$325/oz on 32.2k oz commercial production, or US$361/oz on 105.1k oz commercial + pre-commercial production. The low cash costs at Fekola benefited from stockpiling of ore, higher grades of 3.01 g/t (reserve grade 2.37 g/t) and higher-than-expected recoveries of 95.4% (92.8% in 2015 technical report). We expect Fekola total cash costs to revert higher in Q1/18 on lower grades, although to remain competitive (NBF est. US$512/oz). 2018 guidance (released Jan. 11) midpoints call for Fekola production of 405k oz at an AISC of US$600/oz. Unsold inventory offers tailwind for Q1/17. Attrib production of 161.9k oz was released Jan. 11 (see NBF note), while sales reported with financials missed at 131.6k oz (NBF 161.9k oz). The ~30k oz delta on bullion sales provides a read-through for a Q1/18 tailwind on a catch-up in sales. Maintaining Outperform and C$7.00 target. Our target is based on 4.25x (unchanged) our EV/EBITDA NTM where EBITDA NTM is US$441 mln (was US$421 mln). Trades at a premium on P/NAV 1.35x (peers 0.84x), but a discount on P/CF18 5.8x (peers 6.8x).