The employer has been acquired by another company. The new company still wants to hire the alien. What do we need to do?

According to the Labor Department:

The new employer must submit a copy of the employer's articles of incorporation, business license, state registration, or other official documents that establish the employer as a bona fide business entity and establishes the legal buyout or "successor in interest" position. In addition, a new Form ETA 750 Part A and Part B must be provided to continue the permanent foreign labor certification process.