I am Roshan Indika, engaged in selling Insoluble Saccharin Sodium in Russia, thus, it is extremely important for me to select a reliable supplier of Insoluble Saccharin Sodium.
Shipping and Payment
In order to meets different needs of buyers, according to intercoms, Insoluble Saccharin Sodium suppliers often provides several payment ways, such as FOB, L/C, D/P, T/T and so on.
Exquisite Website
Qualified Insoluble Saccharin Sodium suppliers tend to have more elaborate and professional web site, with better user experiences and less bugs or faults.
Google “Company Name”
A renowned company name usually shows a great deal results on Goolge Search, because its company name is frequently searched by their customers or cited by other web sites.
Take “Foodchem International Corporation” as an example, as has been showed in the below picture, there comes out more than 298,000 searching results on Google. 
Location
Generally cargo takes ship delivery; thus, sustainable trading companies tend to set their sites in coast cities, such as Shanghai, Qingdao, and Tianjin in China.
Size of Team
Member Size of suppliers or manufacturers also plays a very important role; generally number of manufacturers is slightly larger than traders. A complete overseas trade involves a lot of sessions; To perform perfectly, each session requires well-professional persons. A well-founded overseas trading company generally includes online marketing, sales, logistics, purchasing, service, administration departments, etc.
Normally we can scan through the vendor’s web site or some third-party social networking sites to confirm suppliers’ team size.
History of Supplier
History counts for a lot, a supplier with long history in the Insoluble Saccharin Sodium industry has a wealth of experience to accurately grasp the Insoluble Saccharin Sodium market, most of unexpected problems can be solved timely and accurately. The Chinese government gives all the enterprise a issued business license, from which history of enterprises can be found. Under such a fierce competition of Insoluble Saccharin Sodium market, enterprises who can survive over five years can normally be trusted.
The picture below shows the license certificate of Foodchem International Corporation, China’s leading supplier of food additive and food ingredients with establishing year of more than 8.
Certificate
A formal operation supplier of food additives normally passes ISO certificate as well as other well-known certificate like halal, kosher, ect.
Sales of Supplier
There are tons of suppliers of Insoluble Saccharin Sodium in China, thus, supply scale should be important, Insoluble Saccharin Sodium suppliers with a certain size suppliers tend to have more bargaining power, in some country, we can even find their Insoluble Saccharin Sodium supply volumes through customs data.
http://www.foodchemadditives.com/products/Insoluble-Saccharin-Sodium