Bank of America said it plans to close two of its four Singapore branches and reduce its staff in Singapore by about 100 employees, or about 12.3%, later this month . . . RCA said it is calling a special shareholder meeting Feb. 13 to vote on the firm's previously reported merger agreement with General Electric . . . Todd Pacific Shipyards reported that it has laid off 200 workers in San Pedro this week and will let more employees go in the coming weeks . . . Standard & Poor's said it lowered the subordinated debt rating of Viacom International to BB- from BB+, affecting $50 million of Viacom's outstanding debt . . . Malrite Communications Group said it has completed the acquisition of radio stations KLAC-AM and KZLA-FM, which serve Los Angeles, from Capital Cities Communications and KSRR-FM in Houston from American Broadcasting Cos.