I am Emmanuel, engaged in selling Xanthan Gum in food in Russia, thus, it is extremely important for me to select a reliable supplier of Xanthan Gum in food.
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.
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. 
Supply of Products
Compared with Manufacturers, other than service advantage, main advantage of trading companies lies in being able to provide various kinds of products. For example, when we would like to order Xanthan Gum in food as well as several other food ingredients, trading companies becomes the best choice, since unlike factories, traders can provide one-stop service and have greater bargaining powder which permits a lower price.
Of course , we can purchase Xanthan Gum in food directly from manufacturers if the volume is large enough, but it won’t be a bad choice if we keep in touch with some large-scaled traders. Because once your long-term-cooperate factory is in short of Xanthan Gum in food , we can turn to trading companies, who can help to find other suppliers shortly or even direct supply Xanthan Gum in food in no time.
As far as we know, big suppliers of food additives and ingredients can basically provide more than 100 kinds of products, among which, Foodchem International Corporation are able to supply overseas customers more than 300 kinds of food additives and ingredients, plant extracts, nutritional supplements, apis, etc.
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
Xanthan Gum in food 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 Xanthan Gum in food good suppliers: Visit suppliers’ websites to see their participation in the exhibitions.
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 Xanthan Gum in food industry has a wealth of experience to accurately grasp the Xanthan Gum in food 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 Xanthan Gum in food 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.
Shipping and Payment
In order to meets different needs of buyers, according to intercoms, Xanthan Gum suppliers often provides several payment ways, such as FOB, L/C, D/P, T/T and so on.
Exquisite Website
Qualified Xanthan Gum in food suppliers tend to have more elaborate and professional web site, with better user experiences and less bugs or faults.
http://fr.foodadditives.com/Acide-amin%C3%A9/L-th%C3%A9anine-6.html