Fairchild International, a major coal mining equipment manufacturer, will move its manufacturing operations and the majority of its support operations to Glen Lyn, Va., from its current Beckley, W.Va., location.

Jack R. Fairchild, chairman and chief executive officer of the company, said the move could bring 200 to 250 jobs to Giles County in southwestern Virginia by the end of 1986, depending on the state of the coal industry.

Fairchild said the new 115,050-square-foot facility, located on a 35-acre site, would give the company "the efficiency of having manufacturing, engineering, research and development, marketing, sales, purchasing, finance and other support services together in one location."

The move, already under way, is expected to be completed about the first of April. The company plans to be operating in Glen Lyn by May 1. The company said it will retain executive offices, Fairchild Financial Corp., a parts distribution warehouse, Slab Fork Used Equipment Operation and Fairchild Air Corp. in Beckley.

"The move will initially bring about 140 jobs to the area, and by the end of the year we hope to employ between 200 and 250 people at the Glen Lyn location," Fairchild said.

Phoenix Associates Inc., a Bethesda scientific and technical management consulting firm, has been selected by the Xinhua News Agency in China to conduct a major feasibility study on upgrading the agency's information processing and communications systems.

The U.S. Trade and Development Program, which is run by the International Development Cooperation Agency, is financing the study. Since 1978, Phoenix Associates Inc. has consulted for the Chinese government.

Esther Smith, one of the founders of the now highly competitive market for Washington-area business publications, has discovered a new cause.

On April 3, the founding editor of two of Washington's business journals -- The Business Review of Washington and the Washington Business Journal -- will launch Washington Technology, a biweekly tabloid aimed at Washington's high-technology community.

The new paper, which will average between 24 and 32 pages, will focus on the "local business-to-business information" needs of the 1,100 high-technology companies and 28 higher education institutions offering degrees in related fields that Smith estimates exist in the Washington area.

"We are covering news, trends, developments and issues that affect local commercial and professional opportunities in the technology industry," she said.

Smith said the need for an "information clearinghouse" for high-technology companies in the Washington area has long been overlooked. Citing a 1985 study by the Greater Washington Research Center, Smith said that 75 percent of the area's money for private high-technology business goes to firms outside of the region because local companies lack information about neighboring firms.

Washington Technology follows the example set by three similar publications serving major cities with a large base of high-tech companies: Los Angeles Technical Journal, Mass High Tech and Silicon Valley Corporate Times. Smith said Washington Technology has established a news service with the Los Angeles paper and is discussing a similar agreement with Mass High Tech.

Scott & Stringfellow Inc., continuing its expansion of the last three years, has acquired the Tysons Corner office of Eastern Capital Securities Inc. Since 1983, the Richmond brokerage and financial services firm has expanded steadily to include 13 branch offices and 100 account executives.

The new office, located at 8133 Leesburg Pike in Vienna, will continue to be managed by Aldin S. King, branch manager since 1981.

"We look forward to moving into the fast-growing, dynamic Northern Virginia and Washington areas," said Francis A. Pineno, president of the brokerage.

Goodyear Aerospace Corp. has formed an "advanced projects" group to develop new business for the company and will locate it at an as-yet-unselected site between Dulles International Airport and downtown Washington, the Akron-based company announced.

The new team will be staffed by up to 24 technicians, according to Bill Zeigler, vice president for advanced projects and planning.

The group, which has an initial, five-year charter, will assist the parent company "in capturing evolving new technology," according to a statement. Goodyear Aerospace, a subsidiary of the tire and rubber manufacturer, already develops and produces an array of aerospace products, from aircraft wheels and brakes to weapons to flight simulators.