Traders whose annual demand less than 200 tons in Soy Lecithin
I am Chen Li Tien, engaged in selling Soy Lecithin in Russia, thus, it is extremely important for me to select a reliable supplier of Soy Lecithin.
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.
Company Name
As a professional trader or manufacturer of food additives, normally its company name has food, chemical, additives or other key words in it. Other trading companies who have affairs in all fields, usually performs unprofessionally.
Shipping and Payment
In order to meets different needs of buyers, according to intercoms, Soy Lecithin suppliers often provides several payment ways, such as FOB, L/C, D/P, T/T and so on.
Exquisite Website
Qualified Soy Lecithin suppliers tend to have more elaborate and professional web site, with better user experiences and less bugs or faults.
Google "Website"
While Googling a company website, there will be attached links along with the website on result page. It is an effective and reliable route to judge company scale and brand awareness since not a single company is able to impact Google's objective valuation towards any company. 
Exhibition
Soy Lecithin suppliers will never ever lose the opportunity to communicate with customers face to face on exhibitions. Although with rapid development of the network, some people choose not to attend exhibitions, while substantial companies still avail these opportunities to meet their clients and looking for potential clients.
Therefore, exhibitions provide a efficient solution to find Soy Lecithin good suppliers: Visit suppliers' websites to see their participation in the exhibitions.
Certificate
A formal operation supplier of food additives normally passes ISO certificate as well as other well-known certificate like halal, kosher, ect.
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. 
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.
