I think he might have been referring to a slew of images floating around online showing countries buying up "covid 19 test kits" in the years prior to the actual outbreak. I can't verify the authenticity of these images so have never said such a thing, but they do exist and have been floating around for some time on social media platforms.
Edit: like this post
and this one:
upload pic
Edit: I actually just visited the WITS website and ran this query. The product ID 902780 actually does exist, as does the data pertaining to World exports, however the product name is now "Medical Diagnostic Test instruments and apparatus", which could mean anything.
As a result, the pasted images have either:
1. Been doctored to read "Covid 19 diagnostic test"
2. They were incorrectly described, or the name of that test was changed after the pandemic started which skews the reporting now.
3. There actually is a conspiracy, the pandemic was planned and the tests were distributed prior to it happening.
Pick your poison really.