fe:cr ratio

Did a bit more research just now. I think, one possible reason the market is sceptical of CCI, is there could be problems selling the ore to China. I checked alibaba.com and chrome ore buyers who disclose their required full specifications look for a Fe:Cr ratio of at least 2.5 or so. CCI's LG6 seam ore has a fe:cr ratio of 1.5. I'm not up with the science so I'm not sure if this is a big deal, or how important this is. There's a part from an article (http://www.texreport.co.jp/xenglish/index.html?=20040625.html) which seems to somewhat back up these concerns:

"A sudden and considerable increase in export of South African chrome ore for China arisen in 2005 has been argued in South Africa. According to the customs-statistics released in China, this country imported 329,000 tons of chrome concentrate from South Africa in 2005, which exceeded substantially 108,000 tons imported in 2004 and 42,000 tons in 2003. Owing to the fact that the quality of chrome ore produced in South Africa is low grade and not suitable for using in China, a scale of the ore import from South Africa into China was so far on a low level. Even though China increased to import chrome ore from South Africa, South African chrome ore shared 10.9% of the whole import by China in 2005."

I'm assuming the "low grade" statement made above refers to the fe:cr ratio as avg chromic oxide content of sth african ore concentrates is 45% (sourced almost exclusively from bushveld region).

Have we got any metallurgists around here who can eloaborate on the significance of the fe:cr ratio to buyers of chrome ore? Or am I just talking out of my ass here.