Thanks for your response.One more question. I have filed perm labor with company A and it got approved but didn’t file I 140 with them. After a year I have filed perm labor and I 140 with company B and both are approved. Can I use company A labor filed date as my priority date in future even though I haven’t filed I 140 with them?
If you do not file i140 after PERM approval, the PERM expires within 180 days. I do not think you can use that PERM date to port to future employers if i140 was never filed.
Thank you for your response.