watch out for the Arsenic in any Cu/Au or Cu concentrates they...

watch out for the Arsenic in any Cu/Au or Cu concentrates they try and produce. these types of projects in this part of the world typically face challenges with enargite and needing to deal with As which has tighter and tighter restrictions placed on it by smelters. Tampakan once owned by Xstrata and potentially still under some sort of Glenocore ownership had to contend with this issue when looking at this project back in the 2000 with Indophil Resources.
Had a look at some detail from IDM webpage and reports saying that there is really only one ore zone type that will contain As and it makes up a small percentage of the deposit (~4%) to date but surprisingly in all of the reports they say saleable concentrate can be produced but don't list any parameters around what deleterious elements are present. Seems like a lot of work still needs to be done to get this to a FID decision for mining and processing.