Here is a link to recent presentations/articles written or co-written by Gerald Sanders, who is the head of NASA ISRU: https://ntrs.nasa.gov/search.jsp?Nm=4294925514|Author|Sanders,%20Gerald%20B.&N=0 You might want to be on the lookout for "technology roadmaps" contained in some of these papers - the roadmap charts for Mars or Moon exploration often have info that shows what ISRU technologies are needed and what the plans are for developing the technology (I couldn't readily put my hands on an example, but you should be able to find some that aren't too old by doing some searches around the topic). Regards, Mark

Article Parametric review of existing regolith excavation techniques...

Experimental Development and Testing of the Ilmenite Reduction Reaction for a Lunar ISRU Demonstration with ProSPA