LONDON — Northrop Grumman is signing industrial agreements with South Korean industry to support the company’s efforts to sell the high-altitude, long-endurance RQ-4 Global Hawk unmanned aircraft to the country.

The four industrial agreements are due to be signed next week during the Seoul air show. The deals will allow the South Korean partners to bid for workshare on Global Hawk. Partners include the Dreaming and Challenging Co., Firstec, Korea Jig and Fixture, and Korean Air Lines.

South Korea is looking to acquire four Global Hawks. The imagery intelligence aircraft would be in the Block 30 configuration.

The first delivery of the Global Hawk to South Korea is expected around 2014.

This marks one of several international efforts for Global Hawk. This week, a signals-intelligence version for Germany, the Euro Hawk, was formally displayed. The first, for testing, is due to be delivered to the German air force next year. Germany also has expressed interest in buying the imagery-intelligence version toward the end of the decade.

Meanwhile, NATO also is hoping to finalize acquisition of the Global Hawk-based Alliance Ground Surveillance system.