Is network marketing a halal business?

I want to know about one business. Which is as following. Sir the business name is network marketing. The process is that I buy one product which is truely HALAL.e.g wathces, Jewellery etc. Aftre buying the product the company from where I bought the products asked me whether you want to become our business parter If I said Yes. Then I become the business partern of that company. And the money I paid to buy the product is my investment. Now if some more persons come to buy the product from this company through my refrece. Then company will give me commission let say 3% to 6% of each product. and the products are truely HALAL. And there is no cheating also. If I make the marketing of this company and asked the people to buy more product from this company then my i will get profit. If i stop then i will not getting anything. Please let me know whether this business is HALAL or not … i shall be very thankfull to you if you email me this answer.