While, all our vendor plans provide minimum guarantee of 2 inquiries per month and 6 inquiries in a quarter - whichever is earlier. The difference occurs in the quality of inquiries.
Standard plans does not have minimum order value or MOQ : so an inquiry of 50 pcs would also qualify as an eligible inquiry even if that inquiry might not fit your factory's MOQ requirement.
On the other hand, Silver and Gold plan have MOQ benchmarks.