The SPA should describe in detail what happens at the time of conclusion, for example: BTA is a direct sale of a business entity, while the sale of shares to someone is similar to that of a part of the business. Of course, the agreements are quite different, because the commercial interests to be protected are also totally different. When part of the purchase price is retained by the buyer once completed, for example to satisfy copyright arising from the seller`s warranties and indemnities, this may be deposited into a fiduciary account with a third party such as a bank or lawyer. To this end, a mechanism will be put in place to describe trust agreements and predict when and how funds will be released. From the name itself, we can imagine an agreement in which shares are transferred from one party to another. Shares give shareholders (one who owns the shares) ownership of the company, and this can be done by purchasing one share by the company or by the company`s existing shareholders. To make a transfer legally binding, it is always advisable to enter into an agreement. First imagine that A sells his house to B. Secondly, A will share the house with B as a cohabitant and will each own 50% of the shares of the property as co-owners. Since a share purchase agreement is a private transaction, it usually contains provisions limiting the flow of confidential information and preventing buyers and sellers from disclosing the details of the transaction to third parties. Similarly, the SPA may contain a clause describing how, where and when announcements about the transaction may be published. The agreement serves the intention of the party to extend the investment with the increase.