LONDON (Dow Jones)--21st Century Technology PLC (C21.LN), a vehicle installation service provider supplying public transport CCTV and other monitoring systems, said Wednesday Jan Gustaf Lennart Holmstrom has been appointed Non-Executive Chairman with immediate effect. MAIN FACTS: -Holmstrom, 57, is currently the Managing Director of Browallia AB and a Director of Browallia Holdings Ltd., both part of Bronsstädet Group, the property and investment group controlled by Peter Gyllenhammar and a Director of The Union Discount Company of London Ltd. also owned by Peter Gyllenhammar. -Through Bronsstädet Group and The Union Discount Company, Peter Gyllenhammar has a 29.54% interest in 21st Century. -Shares closed Tuesday at 6.5 pence. -By Tommy Stubbington, Dow Jones Newswires; 44-20-7842-9268; [email protected] (END) Dow Jones Newswires July 21, 2010 02:36 ET (06:36 GMT)