Alcatel has swept away another security obstacle to its merger with Lucent Technologies, agreeing to hand over its satellite and security activities to French defense and aerospace electronics group Thales.

The French government considers Alcatel’s relationship with Thales of national strategic interest. Alcatel’s agreement to sell its satellite business to Thales mirrors Lucent’s undertaking to set up a separate subsidiary run by U.S. citizens to handle sensitive research and development work for the U.S. government.

Alcatel, of Paris, and Lucent, of Murray Hill, N.J., announced plans Sunday to merge in a deal that will leave Alcatel shareholders holding around 60 percent of the combined company, but put Lucent’s Patricia Russo in the role of chief executive officer (CEO). Alcatel was already discussing the satellite transaction with Thales as the Lucent deal concluded.

Under the terms of the agreement, announced Tuesday, Thales will take control of Alcatel’s stakes in two satellite joint ventures, which together generate around 1.1 billion euros (US$1.35 billion) in annual revenue. Alcatel holds 67 percent of Alcatel Alenia Space and 33 percent of Telespazio, with Italy’s Finmeccanica SpA holding the remainder of each. Alcatel will also hand over its transport systems division, which develops signaling systems for railways, and the parts of its systems integration division not concerned with telecommunications. Those activities have annual revenue of about 900 million euros.

In return for the satellite and security activities, the Thales board agreed to pay Alcatel 673 million euros (US$820 million) and 26.67 million Thales shares. The transaction will boost Alcatel’s stake in Thales from 9.5 percent to 21.6 percent, with the French government holding 27.1 percent, and 42.4 percent of the shares traded on the stock market. The deal is expected to close in the second half of the year, subject to approval from various French regulators, Finmeccanica, Alcatel-Lucent, Thales shareholders and the Thales workers’ council.

Thales, of Neuilly-sur-Seine, France, employs approximately 60,000. Alcatel’s satellite and security businesses will bring it about 11,000 more employees, mainly in Canada, France, Germany and Italy. Thales expects the deal to bring annual cost savings of about 50 million euros from 2008, Chairman and CEO Denis Ranque said in a conference call Tuesday.

Alcatel and Thales will continue their existing technical and commercial cooperation agreements, the companies said.

Another group, European Aeronautic Defence and Space Company EADS NV, had been hoping to form closer links with Thales, but Ranque said any such deal would have to wait.

"Let’s ask the customers. It would be silly to have a European leader when customers want competition. Let’s take time, analyze what is happening. First we need to consult with our customers," he said.