Lockheed Corp. International will open a Seoul,...

Lockheed Corp. International will open a Seoul, South Korea, marketing office Wednesday to be headed by W. T. West, a Lockheed engineer and manager for 25 years. . . . Intel Corp. has hired Japan’s Mitsubishi Electric Co. to make a memory chip to be sold under the Intel name in Japan, analysts said . . The feasibility of a merger is under study by the New York Mercantile Exchange and the Commodity Exchange Inc.