In a product market, who is the seller and who is the buyer?

Generally speaking, in economies that reply on the sale of products (goods) and services, than both the seller and consumer are citizens, with the seller being the one of makes the product, and the buyer being the one who buys the product. 

The  pan-african movement  was an "emotional, cultural, psychological and ideological  movement  that began among the  african  dispora in the western hemisphere, for a closer  purpose, so that  african  people could feel secure, attain political, economic as well as psychological power visa vis other races or world regions" .