what kind of commodities are you going to sell ? will there be a guarantee program for certain categories, like electronics for example ?
i had booked goods on web on Caganu for several time, so i can tell you that they sell many kind of products such as sport stuffs, shoes, wallets and so on, you can find what you want easily on this website. About the category, i think you should contact them for more details.
If an E-commerce busniness is being conducted, are there any risks for both side for the buyers and the sellers
In my opinion, with the help of Blockchain buyers and sellers do not have to trust each other anymore because Blockchain will reduce all risks by dealing with any problems whenever they come up.