The Jinfeng plant is HUGE, SGX appear to have a ~US$250m plant at the cost of ~US$90m to US$95m.
Initial grades are higher than we expected at Jinfeng with the first bench showing a clump of ~14g/t values, and inferred higher reconciliations, resulting in expected initial Year 1 open-cut grades ~20% higher at 6 to 7g/t.
Just how much gold Jinfeng can produce annually is open to debate. Rated as 180,000ozpa based on 1.2mtpa, peak production appears to have the potential to be ~300,000ozpa to 400,000ozpa or so. (It was not surprising post the visit that Gold Fields established a new 50/50 JV with SGX targeting potential 5moz orebodies with 500,000ozpa production, & increased their holding in SGX to 17.4%).
This comment was written following an analysts’ trip to Jinfeng ahead of the China Mining Conference in Beijing in November 2006, at which SGX received the Mine Development of the Year Award for the Jinfeng Gold Project. The trip highlighted the size of the Jinfeng plant, its potential capacity, early indications of higher grades than expected and included a presentation on SGX’s exploration activities in China.
The Ausenco (AAX) built Jinfeng plant as shown in Figures 1a and 1b is HUGE with the main section about 0.5km long and the whole plant at least 800m long. It looks like it should easily achieve the usual 20% (for Australian built plants) above rated capacity, and that is before the 50% expansion. (The 20% above normal usually results from the fact that a 15% design contingency is built into the size components in Australian plants, however a 25% design contingency has been used at Jinfeng (based on accepted practice in the Asian region)). While the 50% expansion (at a possible cost of US$15m from cashflow) appears likely to occur, numerous variations are to be tried first to see what the plant can achieve before it is expanded.