By Rachael Gormley Of DOW JONES NEWSWIRES LONDON (Dow Jones)--Recruitment company Robert Walters PLC (RWA.LN) Wednesday said it plans to open another office in mainland China as well as its first in South Korea by the end of 2010 as it looks to expand its footprint in the lucrative Asia Pacific region. Chief Operating Officer Giles Daubeney told Dow Jones Newswires that the firm was also looking at entering the Vietnamese and Indonesian markets but said that expansion into these emerging markets was still at the research stage. The recruiter said Wednesday net fee income from the Asia Pacific region--its biggest market in terms of gross profit--rose 99% on year to GBP19.5 million in the second quarter to June 30. -By Rachael Gormley, Dow Jones Newswires; 44-20-7842-9308; [email protected] (END) Dow Jones Newswires July 07, 2010 04:14 ET (08:14 GMT)