RE: Roan broken22 Feb 2026 04:10
Seis thanks,
So, copper sulphate is recovered first (leach with sulphate minerals taken out), and after this copper oxide (waste product, different chemicals - next route to process.
"Roan Operations (Roan) reached targeted production levels of approximately 30 000 tonnes per month feed rate during the period overcoming the expected rainy season interruptions",
Q1 2026 Jubilee produced 456 sulphide concentrate vs 70 in Q2. Jubilee proudly reported saleable Cu units 938. Q2, Cu units in oxide concentrates 155 vs 83 in Q1, and Cu units in oxide fine concentrates double from 152 to 330.
Production is now split, it is difficult for me to understand the variation per quarter and most fascinating is the drop in saleable sulphide concentrate from Q1 to Q2 (due to higher concentrate oxide ROM?) .... Reported average 30,000 tonnes per month for Q2 and it works out as follows: grade 1.6 copper and recovery rate of .7 means 288 copper oxide per month.
If the circuit for oxide is non functional or faced with challenges than I assume they have a stock pile of unprocessed oxide at Roan and not reported?
The concentrate in fines goes a different route separated first by DMS (density separator with cyclon), low grade cupper concentrate capturer.. This seems to have worked well.
Seis, your technical knowledge would assist and is the interpretation correct?