Lockheed Martin Corp announced it expects its $9 billion purchase of Sikorsky Aircraft from United Technologies Corp UTX to close on Friday, after receiving final regulatory approval from China. Lockheed Chief Executive Marillyn Hewson said, “With this final regulatory approval, we are one step closer to completing this historic acquisition.” United Technologies told investors at a conference earlier on Tuesday that China approved the deal and it should close by the end of the week.