The Certificate of Sponsorship (CoS) is an essential document within the United Kingdom's immigration system, serving as proof that an employer is authorised to sponsor a skilled worker from outside the UK. It plays a crucial role in enabling individuals to work in the UK and is granted by employers who hold a valid sponsor licence.
read more - https://www.visasimple.com/certificate.html
![image](https://www.useallot.com/upload/photos/2023/06/UiNNqkLQ5DgQC15WF2w3_20_b07194fff8d36ff39bd5dd021fe32490_image.png)