Build a B2B Marketplace with multiple vendors & buyers

B2B Marketplace – Stationery, School & Office Supplies We want to develop a "B2B" portal for exporters & importers of stationery, school & office supplies fom across the world. Multiple exporters should be able to list their products which importers will browse through & raise enquiries which will be routed to the exporter for further action. Exporter Profile & Product Catalogue - Exporter should be able to manage their profile, product listings, price-range, moq, stock etc directly. Exporter Profile Page should Display the information about manufacturer, office picture, factory picture, business registration certificate etc. They should be able upload product offers individually or through CSV file. Exporters name & address will be visible on the platform but for further details the importer has to register & login. Exporter should be able to send personalised message to registered importers with their contact details etc. Importer Profile & Requirement Management - Importer name, address & contact details will not be visible to anyone, unless the Importer themselves send a message to any particular supplier. Importer should be able to select multiple products from different exporters, add to their wish list or cart & send out an enquiry to multiple vendors at one go with a personalised message. We could limit to say max 5 vendors at one time to restrict spamming. Also importer should be able to bulk upload Request for Quote (RFQ) with all items that they might be interested in sourcing. They should be able to do this individually or through CSV file. Rating – All users should be able to leave 1-5 star ratings for Importer & Exporter. But only for the ones they have interacted with. Subscription Plans, Advertisements & Other Services –Users should be able to pay for subscription plans or other services that we will provide. We will need API integration for payment gateway. Provision for COUPON Codes, amount wise, percentage wise, limit to number of users etc option. We will have a fulfilled by “our platform” option aswell but only for Indian exporters. So if any importer wants to order directly with us they should be able to. Every exporter will have the option to “select” an option if they want to export directly or keep it optional to either export directly or through our platform. Responsive Design – goes without saying that it should work on any devices eg mobile to desktop etc Other related custom add-ons as required to cover for above. Admin Panel - Admin should have authority to approve, edit individual profiles, posts etc. Admin should be able to change subscription plans, rates, details, coupon codes if any etc Admin should be able to update banners, advertisers etc on the platform. Exporter & Importer verification based on their KYC & Various identity proof Management Reports - Per Exporter/ Importer reports for top selling products etc Sub-admin roles with limited features & accessibility to manage the site. Will need basic things like profanity filter etc