<Page> Exhibit 4.9 Euro Tech Holdings Company Limited Form 20-F Fiscal year: December 31, 2001 EURO TECH HOLDINGS COMPANY LIMITED 18/F GEE CHANG HONG CENTRE 65 WONG CHUK HANG ROAD HONG KONG TEL: (852) 2814 0311 FAX: (852) 2873 4887 June 27, 2002 Securities and Exchange Commission Washington, DC Arthur Andersen & Co has represented to the Board of Directors of Euro Tech Holdings Company Limited that its audit of the consolidated financial statements of Euro Tech Holdings Limited and Subsidiaries as of and for the year ended December 31, 2001 was subject to the firm's quality control system for the U.S. accounting and auditing practice to provide reasonable assurance that the engagement was conducted in compliance with professional standards and that there was appropriate continuity of Arthur Andersen & Co personnel working on the audit, availability of U.S. national office consultation and availability of personnel at foreign affiliates of Arthur Andersen & Co to conduct the relevant portions of the audit. Yours faithfully, EURO TECH HOLDINGS COMPANY LTD /s/ T.C. Leung T.C. Leung Chairman