EXHIBIT 31.2CERTIFICATIONI, Thomas G. Mair, certify that:1. I have reviewed this report on Form 10-K/A of Golden Star Resources Ltd.(“Registrant”);2. Based on my knowledge, this annual report does not contain any untruestatement of a material fact or omit to state a material fact necessary tomake the statements made, in light of the circumstances under which suchstatements were made, not misleading with respect to the period covered bythis annual report; 3. Based on my knowledge, the financial statements, and other financialinformation included in this annual report, fairly present in all materialrespects the financial condition, results of operations and cash flows ofthe Registrant as of, and for, the periods presented in this annual report; 4. The Registrant’s other certifying officer and I are responsible forestablishing and maintaining disclosure controls and procedures (as definedin Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control overfinancial reporting (as defined in Exchange Act Rules 13a-15(f) and15d-15(f)) for the Registrant and have: a) designed such disclosure controls and procedures, or caused suchdisclosure controls and procedures to be designed under oursupervision, to ensure that material information relating to theRegistrant, including its consolidated subsidiaries, is made known tous by others within those entities, particularly during the period inwhich this annual report is being prepared;  b) designed such internal control over financial reporting, or causedsuch internal control over financial reporting to be designed underour supervision, to provide reasonable assurance regarding thereliability of financial reporting and the preparation of financialstatements for external purposes in accordance with generally acceptedaccounting principles;  c) evaluated the effectiveness of the Registrant’s disclosure controlsand procedures and presented in this report our conclusions about theeffectiveness of the disclosure controls and procedures, as of the endof the period covered by this report based on such evaluation; and  d) disclosed in this report any change in the Registrant’s internalcontrol over financial reporting that occurred during the Registrant’smost recent fiscal quarter (the Registrant’s fourth fiscal quarter inthe case of an annual report) that has materially affected, or isreasonably likely to materially affect, the Registrant’s internalcontrol over financial reporting; and5. The Registrant’s other certifying officer and I have disclosed, based onour most recent evaluation of internal control over financial reporting, tothe Registrant’s auditors and the audit committee of Registrant’s board ofdirectors (or persons performing the equivalent functions): a) all significant deficiencies and material weaknesses in the design oroperation of internal control over financial reporting which arereasonably likely to adversely affect the Registrant’s ability torecord, process, summarize and report financial information; and  b) any fraud, whether or not material, that involves management or otheremployees who have a significant role in the Registrant’s internalcontrol over financial reporting.Date:February 26, 2007   /s/ Thomas G. Mair       Thomas G. Mair