A friend of mine submitted a paper to a conference, about a topic he was working on in his company. Recently, he got fired from his company so unfairly due to colleagues jealousy (seriously). He already got approval for publication when he was there, but the submission was made arter the firing. The work was a side project, not exact responsibility for him. And he was the only author from the company.
Is he obliged to add his company name as his affiliation? They are not going to pay for the registration and travel sponsorship. He doesn't want to mention he even worked there.