This is a explorers log post for planet Orishis 6 which I found 2 minor wreckage sites with threat level 1 and 3. 
Both sites have a chance to spawn 2-3 NPC Pirates.
Both have one container which offers the following:
Infinity
Compact Library
Health Monitor
And a SRV with 2 Panels on back which offers the following:
Micro Transformer
Optical Fibre x2
Circuit Board x2
Metal Coil
Different planet with a another type of minor wreckage, this one was found in BD+32 2388 2 A.
Here is a screenshot of the area:
Had 2 different materials out of the following:
Shielding Sensors
Heat Conduction Wiring
Compound Shielding
Chemical Processors
Worn Shield Emitters
Hybrid Capacitors
Has one Intact Cargo Rack that can eject into 6 different resources via the cutting tool.
Here are some of the various material resources that you can get from that process.
Chromium
Manganese
Tungsten
Vanadium
Zinc
Zirconium