Type of business for 200K investment for extension

Hi
can someone please clarify or advised based on your previous experience or knowledge.
i am currently under Tier 1 Entreprenuer Migrant - 200K route
for extension purpose i am a bot confused about the type of business
i have been dealing with exporting stuffs since i had my visa 2013 and spend more than 600K already
i am not sure whether this type of business is acceptable , still confused. after read through the policy guidance, it doesnt mentioned about the type of business should be at least NVQ Level 4 .
it is clear that for PSW Tier 1 route 50k investment the type of business should be at that level but for 200k investment doesnt clear or mentioned anything
appreciate kind help and advices from everybody out there to clear my confusion

On a 200k route you can do anything..from a chicken shop to woo-commerce...cleaning company to laundrymat...as long as u fulfil the requirements...read guidelines for 200k route not 50k