RDA Microelectronics to be Acquired by Tsinghua Unigroup for $18.50/ADS

Tsinghua Unigroup Ltd. ("Tsinghua Unigroup"), an operating subsidiary of Tsinghua Holdings Co., Ltd., a solely state-owned limited liability corporation funded by Tsinghua University in China, and RDA Microelectronics, Inc. (Nasdaq: RDA ) ("RDA" or the "Company"), a fabless semiconductor company that designs, develops and markets wireless systems-on-chip and radio-frequency