It can pledge some as security for loans and as guarantees. Shares can be given as bonuses to important employees. Shares can be traded for the ownership of other companies. Corporations can set up retirement plans for its employees in which the corporation contributes a portion to match the deductions from the employees. The details are many, so consult your tax person.
Corporations have many tax advantages over sole proprietorships or partnerships.
There is also the possibility of electing to have the profits or losses passed to the owners as in a partnership. Again, many details. Should be discussed with your tax person. Corporations may in general become partners in partnerships, which means that two or more corporations or other business entities can join in joint ventures with others. Let's understand that the business of every corporation is to make money and pay dividends to its shareholders.