The contract, worth $755 million, includes Fiscal Year 2013 missile and command launch system production for the U.S. Army and a follow-on sale of the PAC-3 Missile to Taiwan.
In addition to the missiles, Lockheed will also provide 27 launcher modification kits and associated tooling, program management and services.
"The PAC-3 Missile remains in demand from the U.S. and governments around the world," said Richard McDaniel, vice president of PAC-3 programs at Lockheed Martin Missiles and Fire Control.
"In fact, we continue to see expanding interest from all Patriot-using nations as well as from countries that want to acquire the PAC-3 Missile Segment for the first time."
Lockheed said production for all contract items will be undertaken at facilities in Texas, Florida, Massachusetts and Arkansas.
Deliveries are to begin next year.
Theater accidentally screens 'Nymphomaniac' trailer instead of Disney's 'Frozen'
18-year-old elf alleges mall Santa pinched her buttocks on the job