The Imperials are trying to get more miners to work at the Site through coercion, such as strapping EMP devices onto their speeders.
The packages combine together to make a device to detect the pink stuff. We found a large deposit of said pink stuff which apparently hasn't been touched yet.
We got one of the packages directly from Baksed, and Baksed also is known to maintain the Site's equipment. From the inventory note, Emma doesn't seem to know what the pink dust is, which could mean that Baksed also doesn't know.