I am Biju Michael, engaged in selling Phosphoric Acid in Russia, thus, it is extremely important for me to select a reliable supplier of Phosphoric Acid.
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
Phosphoric Acid 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 Phosphoric Acid good suppliers: Visit suppliers’ websites to see their participation in the exhibitions.
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. 
Certificate
A formal operation supplier of food additives normally passes ISO certificate as well as other well-known certificate like halal, kosher, ect.
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.
History of Supplier
History counts for a lot, a supplier with long history in the Phosphoric Acid industry has a wealth of experience to accurately grasp the Phosphoric Acid 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 Phosphoric Acid 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.
Warehouse
Warehouse is also important for Phosphoric Acid suppliers, Phosphoric Acid traders make judgments through Phosphoric Acid market situation. On one hand, while Phosphoric Acid is in the upside, traders purchase bulk Phosphoric Acid for storage, and sell with the price advantage; On the other, vendors need to keep cargo in warehouse in case customers need LCL loaded.
Foodchem International Corporation owns an EDC warehouse in Shanghai, an advanced warehouse system which only few trading companies in Shanghai can provide, it avails fast delivery within 1 week.
Shipping and Payment
In order to meets different needs of buyers, according to intercoms, Phosphoric Acid suppliers often provides several payment ways, such as FOB, L/C, D/P, T/T and so on.
Exquisite Website
Qualified Phosphoric Acid suppliers tend to have more elaborate and professional web site, with better user experiences and less bugs or faults.