Hussain Al Shemsi Chartered Accountants (HALSCA) : Recognized Accounting and Auditing firm in UAE. Auditing, Accounting, Consulting, Tax, Advisory services and Industry driving reviews, to world's most regarded brands, are the comprehensive range of services focused by Hussain Al Shemsi Chartered Accountants (HALSCA). Being a registered and approved Auditing firm with UAE Ministry of Economic Dept., we are authorized to carry out accounting and audit works in all seven emirates of UAE.