What is the difference between tendering and procurement?

Procurement is the process of buying goods, works or services. 
Procurement is often carried out by the process of tendering, rather than buying products directly from a seller. 
A company or organisation (the promoter, client or employer) wishing to obtain goods or services will first specify its requirements. 
Subsequently, it will open the bidding in a process known as tendering. 
Interested companies can then submit their proposals to the client (often a local government) to meet these requirements. 
The government offering the tender will then evaluate the bids to decide which offer best suits its requirements. 
The company that has been successful in the tender process will perform the work by contract.