<Page> SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 20-F/A [ ] REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR [X] ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended July 31, 2006 OR [ ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 OR [ ] SHELL COMPANY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of event requiring this shell company report............... Commission file number: 0-14884 SAND TECHNOLOGY INC. (FORMERLY SAND TECHNOLOGY SYSTEMS INTERNATIONAL INC.) (Exact name of the registrant as specified in its charter) CANADA (Jurisdiction of Incorporation) 215 REDFERN AVENUE, SUITE 410 WESTMOUNT, QUEBEC, CANADA H3Z 3L5 (Address of principal executive offices) TELEPHONE (514) 939-3477 Securities registered pursuant to Section 12(b) of the Act: NONE Securities registered pursuant to Section 12(g) of the Act: CLASS A COMMON SHARES Securities for which there is a reporting obligation pursuant to Section 15(d) of the Act: NONE Indicate the number of outstanding shares of each of the issuer's classes of capital or common stock as of the close of the period covered by the annual report. CLASS A COMMON SHARES - 12,818,189 Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act Yes / / No /X/ 1 <Page> If this report is an annual or transition report, indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15 (d) of the Securities Exchange Act of 1934. Yes / / No /X/ Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes /X/ No / / Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, or a non-accelerated filer. Large accelerated filer / / Accelerated / / Non-accelerated filer /X/ filer Indicate by check mark which financial statement item the registrant has selected to follow. Item 17 / / Item 18 /X/ If this report is an annual report, indicate by check mark whether the registrant is a shell company. Yes / / No /X/ 2 <Page> INTRODUCTORY NOTE This Form 20-F/A is being filed solely to include at page 4 of this document the audit report of Deloitte & Touche, our former auditor, dated September 16, 2005 in Item 18 in response to a comment, and in compliance with the request, of the Securities and Exchange Commission. 3 <Page> Deloitte & Touche LLP 1 Place Ville Marie Suite 3000 [DELOITTE LOGO] Montreal QC H3B 4T9 Canada Tel: (514) 393-5194 Fax: (514) 390-4104 www.deloitte.ca REPORT OF INDEPENDENT REGISTERED CHARTERED ACCOUNTANTS To the Shareholders and Board of Directors of Sand Technology Inc. We have audited the consolidated balance sheet of Sand Technology Inc. as at July 31, 2005 and the consolidated statements of operations, shareholders' equity and cash flows for the years ended July 31, 2005 and 2004. These financial statements are the responsibility of the Corporation's management. Our responsibility is to express an opinion on these financial statements based on our audits. We conducted our audits in accordance with Canadian generally accepted auditing standards and auditing standards of the Public Company Accounting Oversight Board in the United States of America. These standards require that we plan and perform an audit to obtain reasonable assurance whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion. In our opinion, these consolidated financial statements present fairly, in all material respects, the financial position of the Corporation as at July 31, 2005 and the results of its operations and its cash flows for the years ended July 31, 2005 and 2004 in accordance with Canadian generally accepted accounting principles. The Corporation is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. Our audits included consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Corporation's internal control over financial reporting. Accordingly, we express no such opinion. /s/ Deloitte & Touche LLP Independent Registered Chartered Accountants September 16, 2005 COMMENTS BY INDEPENDENT REGISTERED CHARTERED ACCOUNTANTS FOR U.S. READERS ON CANADA-U.S. REPORTING DIFFERENCES The standards of the Public Company Accounting Oversight Board (United States) require the addition of an explanatory paragraph (following the opinion paragraph) when there are changes in accounting principles that have been implemented such as those described in Note 1 to the consolidated financial statements of the Corporation. Our report to the Shareholders and Board of Directors, dated September 16, 2005, is expressed in accordance with Canadian reporting standards, which do not require a reference to such changes in accounting principles in the report of independent registered Chartered Accountants when the change is properly accounted for and adequately disclosed in the financial statements. /s/ Deloitte & Touche LLP Independent Registered Chartered Accountants September 16, 2005 Member of Deloitte Touche Tohmatsu 4 <Page> SAND TECHNOLOGY INC. CONSOLIDATED FINANCIAL STATEMENTS JULY 31, 2006 Report of Independent Registered Chartered Accountants 6 - 7 Comments by Independent Registered Chartered Accountants for U.S. Readers on Canada-U.S. Reporting Differences 8 Financial Statements Consolidated Balance Sheets 9 Consolidated Operations 10 Consolidated Shareholders' Equity 11 Consolidated Cash Flows 12 Notes to Consolidated Financial Statements 13 - 31 5 <Page> REPORT OF INDEPENDENT REGISTERED CHARTERED ACCOUNTANTS To the Shareholders and Board of Directors of SAND Technology Inc. We have audited the accompanying consolidated balance sheet of SAND Technology Inc. and subsidiaries (the "Corporation") as at July 31, 2006 and the consolidated statements of operations, shareholders' equity and cash flows for the year then ended. These financial statements are the responsibility of the Corporation's management. Our responsibility is to express an opinion on these financial statements based on our audit. We conducted our audit in accordance with Canadian generally accepted auditing standards and standards of the Public Company Accounting Oversight Board (United States). These standards require that we plan and perform an audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. The Corporation is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. Our audit included consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Corporation's internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audit provides a reasonable basis for our opinion. 6 <Page> In our opinion, consolidated financial statements referred to above present fairly, in all material respects, the financial position of the Corporation as at July 31, 2006 and the results of its operations and its cash flows for the year then ended in accordance with Canadian generally accepted accounting principles. The financial statements as at July 31, 2005 and for the years ended July 31, 2005 and 2004 were audited by other auditors who expressed an opinion without reservation on those statements in their report dated September 16, 2005. /s/ Raymond Chabot Grant Thornton LLP - ------------------------------------- Independent Registered Chartered Accountants Montreal September 8, 2006 7 <Page> COMMENTS BY INDEPENDENT REGISTERED CHARTERED ACCOUNTANTS FOR U.S. READERS ON CANADA-U.S. REPORTING DIFFERENCES The standards of the Public Company Accounting Oversight Board (United States) require the addition of an explanatory paragraph (following the opinion paragraphs) when there are changes in accounting principles that have been implemented such as those described in Note 2 to the consolidated financial statements as at July 31, 2006 and for the year then ended of SAND Technology Inc. and subsidiaries (the "Corporation") and when the consolidated financial statements are affected by conditions and events that cast substantial doubt on the Corporation's ability to continue as a going concern, such as those described in Note 1 to the consolidated financial statements of the Corporation. Our report to the shareholders and Board of Directors, dated September 8, 2006, is expressed in accordance with Canadian reporting standards, which do not require a reference to such changes in accounting principles or such events and conditions in the report of independent registered chartered accountants when the changes or events and conditions are properly accounted for and adequately disclosed in the financial statements. /s/ Raymond Chabot Grant Thornton LLP - ------------------------------------- Independent Registered Chartered Accountants Montreal September 8, 2006 8 <Page> SAND TECHNOLOGY INC. CONSOLIDATED BALANCE SHEETS July 31, 2006 (In Canadian dollars) <Table> <Caption> 2006 2005 ----------- ----------- $ $ ASSETS Current assets Cash and cash equivalents 1,412,548 5,615,912 Accounts receivable 1,486,287 1,561,613 Prepaid expenses 93,226 127,731 ----------- ----------- 2,992,061 7,305,256 Capital assets (Note 3) 231,367 296,735 Other assets (Note 4) 221,693 332,540 ----------- ----------- 3,445,121 7,934,531 =========== =========== LIABILITIES Current liabilities Accounts payable and accrued liabilities 1,140,343 1,485,597 Deferred revenue 1,231,094 1,447,992 ----------- ----------- 2,371,437 2,933,589 Deferred credits 136,906 166,243 ----------- ----------- 2,508,343 3,099,832 ----------- ----------- Commitments (Note 8) SHAREHOLDERS' EQUITY Common stock (Note 5) Authorized Unlimited number of class "A" common shares, without par value Issued and outstanding 12,818,189 class "A" common shares (12,818,189 in 2005) 38,024,756 38,024,756 Contributed surplus (Note 5b) 103,000 74,000 Deficit (37,190,978) (33,264,057) ----------- ----------- 936,778 4,834,699 ----------- ----------- 3,445,121 7,934,531 =========== =========== </Table> The accompanying notes are an integral part of the consolidated financial statements. On behalf of the Board, /s/ Arthur G. Ritchie /s/ Marc Malouin - -------------------------------------- ----------------------------------------- Arthur G. Ritchie, Director Marc Malouin, Director 9 <Page> SAND TECHNOLOGY INC. CONSOLIDATED OPERATIONS Years ended July 31, 2006 (In Canadian dollars) <Table> <Caption> 2006 2005 2004 ---------- ---------- ---------- $ $ $ REVENUE 5,477,485 6,096,033 5,349,214 ---------- ---------- ---------- Operating expenses Cost of sales and product support 1,554,313 1,754,138 1,652,369 Research and development, net (Note 6) 2,441,950 3,272,102 3,308,789 Amortization of capital assets and other assets (Notes 3 and 4) 248,455 277,276 242,488 Selling, general and administrative expenses 5,220,443 8,317,831 7,604,541 ---------- ---------- ---------- 9,465,161 13,621,347 12,808,187 ---------- ---------- ---------- Loss from operations (3,987,676) (7,525,314) (7,458,973) Interest income 60,755 162,260 329,043 ---------- ---------- ---------- NET LOSS (3,926,921) (7,363,054) (7,129,930) ========== ========== ========== Basic and diluted loss per share (Note 5) (0.31) (0.57) (0.55) ========== ========== ========== Basic and diluted weighted average number of common shares outstanding 12,818,189 12,860,438 13,079,649 ========== ========== ========== </Table> The accompanying notes are an integral part of the consolidated financial statements. 10 <Page> SAND TECHNOLOGY INC. CONSOLIDATED SHAREHOLDERS' EQUITY Years ended July 31, 2006 (In Canadian dollars) <Table> <Caption> Common stock --------------------------- Number of Contributed shares Amount surplus Deficit ---------- ---------- ----------- ----------- $ $ $ Balance as at July 31, 2003 13,164,327 39,051,564 (19,369,906) Net loss (7,129,930) Stock-based compensation (Note 5b) 49,000 Share repurchase (166,776) (494,736) 253,230 ---------- ---------- ----------- ----------- Balance as at July 31, 2004 12,997,551 38,556,828 49,000 (26,246,606) Net loss (7,363,054) Stock-based compensation (Note 5b) 25,000 Share repurchase (179,362) (532,072) 345,603 ---------- ---------- ----------- ----------- Balance as at July 31, 2005 12,818,189 38,024,756 74,000 (33,264,057) Net loss (3,926,921) Stock-based compensation (Note 5b) 29,000 ---------- ---------- ----------- ----------- Balance as at July 31, 2006 12,818,189 38,024,756 103,000 (37,190,978) ========== ========== =========== =========== </Table> The accompanying notes are an integral part of the consolidated financial statements. 11 <Page> SAND TECHNOLOGY INC. CONSOLIDATED CASH FLOWS Years ended July 31, 2006 (In Canadian dollars) <Table> <Caption> 2006 2005 2004 ---------- ---------- ---------- $ $ $ OPERATING ACTIVITIES Net loss (3,926,921) (7,363,054) (7,129,930) Non-cash items Amortization of capital assets and other assets 248,455 277,276 242,488 Stock-based compensation 29,000 25,000 49,000 Changes in working capital items Accounts receivable 75,326 803,042 (23,787) Prepaid expenses 34,505 60,949 14,651 Accounts payable and accrued liabilities (345,254) (395,516) (1,098,530) Deferred revenue (216,898) (106,793) 415,176 ---------- ---------- ---------- Cash flows from operating activities (4,101,787) (6,699,096) (7,530,932) ---------- ---------- ---------- INVESTING ACTIVITIES Purchase of capital assets (72,240) (70,578) (58,642) Balance of sale price receivable 588,483 Increase in other assets (471,100) ---------- ---------- ---------- Cash flows from investing activities (72,240) (70,578) 58,741 ---------- ---------- ---------- FINANCING ACTIVITIES Purchase of common shares (186,469) (241,506) Deferred credits (29,337) (29,338) (29,336) ---------- ---------- ---------- Cash flows from financing activities (29,337) (215,807) (270,842) ---------- ---------- ---------- NET DECREASE IN CASH AND CASH EQUIVALENTS (4,203,364) (6,985,481) (7,743,033) Cash and cash equivalents, beginning of year 5,615,912 12,601,393 20,344,426 ---------- ---------- ---------- Cash and cash equivalents, end of year 1,412,548 5,615,912 12,601,393 ========== ========== ========== </Table> There was no amount of interest paid and no income taxes paid during the three-year period ended July 31, 2006. The accompanying notes are an integral part of the consolidated financial statements. 12 <Page> SAND TECHNOLOGY INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS July 31, 2006 (In Canadian dollars) 1 - GOVERNING STATUTES AND NATURE OF OPERATIONS SAND Technology Inc. and subsidiaries (the "Corporation") is involved in the design, development, marketing and support of software products and services that enable users to retrieve usable business information from large amounts of data. The software products, collectively known as the SAND Analytic Server and the SAND Searchable Archive, are designed to provide an efficient and cost-effective way for business users to make fast and easy inquiries of large databases without the intervention of specialist information technology professionals. The Corporation is considered to have only one reportable business segment. The financial statements have been prepared in accordance with Canadian generally accepted accounting principles and on the basis of the going concern assumption, meaning that it is assumed that the Corporation will be able to realize its assets and discharge its liabilities in the normal course of operations. In light of operating losses suffered in the current and past years, the Corporation's ability to realize its assets and discharge its liabilities depends on the continued financial support of its shareholders and creditors and its ability to obtain additional financing. The Corporation's management has adopted a cost reduction plan to address this situation and is confident it will obtain the necessary financing through public offerings or private placements. The carrying amounts of assets, liabilities, revenues and expenses presented in the financial statements and the balance sheet classification have not been adjusted as it would be required if the going concern assumption were not appropriate. 2 - ACCOUNTING POLICIES ACCOUNTING ESTIMATES The preparation of financial statements in accordance with Canadian generally accepted accounting principles requires management to make estimates and assumptions that affect the amounts recorded in the financial statements and notes to financial statements. These estimates are based on management's best knowledge of current events and actions that the Corporation may undertake in the future. Actual results may differ from these estimates. PRINCIPLES OF CONSOLIDATION The consolidated financial statements include the accounts of SAND Technology Inc. and its wholly-owned subsidiaries which are located in Germany, United Kingdom, Ireland and United States. All intercompany transactions and balances have been eliminated. REVENUE RECOGNITION The Corporation generates revenues principally through two sources: software licences and services. Software licence revenues are normally generated from licensing the perpetual use of the Corporation's software products. Service revenues are generated from sales of maintenance, implementation, consulting and training services performed for customers that licence the Corporation's products. 13 <Page> SAND TECHNOLOGY INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS July 31, 2006 (In Canadian dollars) 2 - ACCOUNTING POLICIES (CONTINUED) Revenue from the sale of software licence agreements is recognized upon delivery of software if persuasive evidence of an arrangement exists, collection is probable, the fee is fixed or determinable and vendor-specific evidence of an arrangement exists to allocate the total fee to the different elements of an arrangement. Vendor-specific objective evidence (VSOE) is typically based on the price charged when an element is sold separately or, in the case of an element not yet sold separately, the price established by management if it is probable that the price, once established, will not change before market introduction. If VSOE of all undelivered elements exists but evidence does not exist for one or more delivered elements, then revenue is recognized using the residual method. Under the residual method, the fair value of the undelivered elements is deferred, and the remaining portion of the agreement fee related to the delivered elements is recognized as revenue provided that all other revenue recognition criteria are met. If evidence of fair value of one or more undelivered elements cannot be established, revenue is deferred and recognized ratably over the last undelivered element. In circumstances where the implementation services are essential to the functionality of the software or where the software requires significant customization, the Corporation recognizes software licence revenue using the percentage-of-completion method over the implementation period. The percentage-of-completion is measured by the percentage of implementation hours incurred to date to total estimated implementation hours. Past experience has shown expended hours to be the best measure of progress. Revenues from maintenance services for licences previously sold and implemented are recognized ratably over the term of the contract. Revenues from consulting and training services not considered as part of the implementation of software licences are recognized as the services are provided. Amounts received in advance of the delivery of products or performance of services are classified as deferred revenue. CASH AND CASH EQUIVALENTS Cash and cash equivalents include unrestricted cash and highly liquid investments purchased with an original maturity of three months or less. 14 <Page> SAND TECHNOLOGY INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS July 31, 2006 (In Canadian dollars) 2 - ACCOUNTING POLICIES (CONTINUED) CAPITAL ASSETS Capital assets are recorded at cost and are amortized over their estimated useful lives using the straight-line method over the following periods: <Table> <Caption> Periods ---------- Furniture and equipment 5 years Computer equipment 3 years Over the shorter of the lease term or Leasehold improvements 10 years </Table> OTHER ASSETS CONTRACT COSTS Contract costs are comprised of an amount paid to a vendor upon the transfer of a long-term service contract and is amortized ratably over the term of the contract ending in 2008. IMPAIRMENT OF LONG-LIVED ASSETS Capital assets and intangible assets subject to amortization are tested for recoverability when events or changes in circumstances indicate that their carrying amount may not be recoverable. The carrying amount of a long-lived asset is not recoverable when it exceeds the sum of the undiscounted cash flows expected from its use and eventual disposal. In such a case, an impairment loss equivalent to the excess of the carrying amount of a long-lived asset over its fair value must be recognized. RESEARCH AND DEVELOPMENT COSTS Research costs are charged to operations in the period in which they are incurred. Development costs are expensed as incurred unless a project meets the criteria under Canadian generally accepted accounting principles for deferral and amortization. The Corporation has not deferred any such development costs to date. Related tax credits are recorded as a reduction of research and development expenses. INCOME TAXES The Corporation uses the liability method of accounting for income taxes. Under this method, future income tax assets and liabilities are determined according to differences between the carrying amounts and tax bases of assets and liabilities. They are measured by applying enacted or substantively enacted tax rates and laws at the date of the financial statements for the years in which the temporary differences are expected to reverse. The Corporation records a valuation allowance for future income tax assets if, based on available information, it is more likely than not that some or all of the future income tax assets will not be realized. 15 <Page> SAND TECHNOLOGY INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS July 31, 2006 (In Canadian dollars) 2 - ACCOUNTING POLICIES (CONTINUED) DEFERRED CREDITS Deferred credits include deferred lease inducements, which are amortized on a straight-line basis over the term of the lease as a deduction of lease expense. FOREIGN CURRENCY TRANSLATION Revenue, expenses and acquisition of non-monetary assets denominated in foreign currencies are translated into Canadian dollars at the exchange rate in effect at the transaction date. Monetary assets and liabilities are translated at the rate in effect at the balance sheet date. The accounts of the subsidiaries included in the consolidated financial statements are translated into Canadian dollars using the temporal method. Under this method, monetary items are translated at the exchange rate in effect at the balance sheet date. Non-monetary items are translated at the historical rate. Revenue and expenses in foreign currency are translated at the average rate in effect during the year, with the exception of revenue and expenses relating to non-monetary assets and liabilities, which are translated at the historical rate. Gains and losses are included in operations for the year. LOSS PER SHARE Per share computations are based on the weighted average number of shares outstanding during the year. The dilutive effect of options is determined using the treasury stock method. STOCK-BASED COMPENSATION AND OTHER STOCK-BASED PAYMENTS The Corporation early-adopted the recommendations CICA Handbook section 3870, STOCK-BASED COMPENSATION AND OTHER STOCK-BASED PAYMENTS, on a prospective basis, effective August 1, 2003, as permitted by the standard. The adoption of this amendment resulted in stock-based compensation in the amount of $49,000 included in selling, general and administrative expenses with a corresponding credit to contributed surplus (see Note 5b). Prior to August 1, 2003, the Corporation recorded no compensation cost on stock options granted to employees (see Note 5b). GUARANTEES In the normal course of its operations, the Corporation has entered into agreements that contain certain features which meet the definition of a guarantee under the guidance provided by Accounting Guideline No. 14. Certain agreements with customers include intellectual-property indemnification obligations that are customary in the industry. These obligations would generally require the Corporation to compensate a third party for certain damages and claims incurred as a result of third-party intellectual-property claims arising from these agreements. 16 <Page> SAND TECHNOLOGY INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS July 31, 2006 (In Canadian dollars) 2 - ACCOUNTING POLICIES (CONTINUED) The nature of these obligations prevents the Corporation from making a reasonable estimate of the maximum potential amount it could be required to pay. Historically, the Corporation has not made any payments under such obligations. In addition, the Corporation has provided warranties as part of the sale of its subsidiary for claims against it related to conditions existing prior to the sale. ASSET RETIREMENT OBLIGATIONS As of August 1, 2004, the Corporation adopted Handbook section 3110, ASSET RETIREMENT OBLIGATIONS, which focuses on the recognition and measurement of liabilities for obligations associated with the retirement of property, plant and equipment when those obligations result from the acquisition, construction, development or normal operation of the assets. The adoption of this recommendation did not have an impact on the Corporation's consolidated financial statements. ADOPTION OF A NEW ACCOUNTING POLICY CONSOLIDATION OF VARIABLE INTEREST ENTITIES The Accounting Guideline No. 15 (AcG-15), CONSOLIDATION OF VARIABLE INTEREST ENTITIES, presents the views of the Accounting Standards Board on the application of consolidation principles to certain entities that are subject to control and on a basis other than ownership of voting interests. This guideline is to be applied for years beginning on or after November 1, 2004. The adoption of AcG-15 did not have an impact on the Corporation's results from operations or financial position. FINANCIAL INSTRUMENTS - DISCLOSURE AND PRESENTATION The CICA issued revisions to section 3860 of the CICA Handbook, FINANCIAL INSTRUMENTS - DISCLOSURE AND PRESENTATION. The revisions change the accounting for certain financial instruments that have liability and equity characteristics. These revisions come into effect for years beginning on or after January 1, 2005. The Corporation does not have any instruments with these characteristics at this time. NON-MONETARY TRANSACTIONS The CICA issued revisions to section 3831 of the CICA Handbook, NON-MONETARY TRANSACTIONS. The revisions replace the current exception from measurement of a non-monetary transaction at fair value for non-monetary exchanges which do not represent the culmination of the earnings process, with an exception based on whether the transaction has commercial substance. These revisions apply to all non-monetary transactions initiated in periods beginning on or after January 1, 2006. The revisions did not have an impact on the Corporation's consolidated financial statements. 17 <Page> SAND TECHNOLOGY INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS July 31, 2006 (In Canadian dollars) 2 - ACCOUNTING POLICIES (CONTINUED) FUTURE ACCOUNTING CHANGES FINANCIAL INSTRUMENTS - RECOGNITION AND MEASUREMENT The CICA issued CICA Handbook section 3855, FINANCIAL INSTRUMENTS - RECOGNITION AND MEASUREMENT. The section is effective for annual and interim periods beginning on or after October 1, 2006. It describes the standards for recognizing and measuring financial assets, financial liabilities and non-financial derivatives. This section requires that i) all financial assets be measured at fair value, with some exceptions such as loans and investments that are classified as held-to-maturity, ii) all financial liabilities be measured at fair value when they are derivatives or classified as held for trading purposes (other financial liabilities are measured at their carrying value), and iii) all derivative financial instruments be measured at fair value, even when they are part of a hedging relationship. The Corporation is currently evaluating the impact of this section on the consolidated financial statements. HEDGES The CICA recently issued CICA Handbook section 3865, HEDGES. The section is effective for annual and interim periods beginning on or after October 1, 2006. It describes when and how hedge accounting may be applied. Hedging is an activity used by a company to change an exposure to one or more risks by creating an offset between changes in the fair value of a hedged item and a hedging item, changes in the cash flows attributable to a hedged item and a hedging item, or changes resulting from a risk exposure relating to a hedged item and a hedging item. Hedge accounting changes the normal basis for recording the gains, losses, revenues and expenses associated with a hedged item or a hedging item in a company's statement of operations. It ensures that all offsetting gains, losses, revenues and expenses are recorded in the same period. The Corporation is currently evaluating the impact of this section on the consolidated financial statements. COMPREHENSIVE INCOME The CICA recently issued CICA Handbook section 1530, COMPREHENSIVE INCOME. The section is effective for annual and interim periods beginning on or after October 1, 2006. It describes how to report and disclose comprehensive income and its components. Comprehensive income is the change in a company's net assets that results from transactions, events and circumstances from sources other than the company's shareholders. It includes items that would be excluded from net earnings, such as changes in the currency translation adjustment relating to self-sustaining foreign operations, the unrealized gains or losses on available-for-sale investments and the additional minimum liability for pension obligations. The CICA also made changes to CICA Handbook section 3250, SURPLUS, and reissued it as section 3251, EQUITY. The section is also effective for years beginning on or after October 1, 2006. The changes in how to report and disclose equity and changes in equity are consistent with the new requirements of section 1530, COMPREHENSIVE INCOME. 18 <Page> SAND TECHNOLOGY INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS July 31, 2006 (In Canadian dollars) 2 - ACCOUNTING POLICIES (CONTINUED) Adopting these sections on August 1, 2007 will require the Corporation to begin reporting, to the extent that they are relevant, the following items in the consolidated financial statements: - - Comprehensive income and its components; - - Accumulated other comprehensive income and its components. ACCOUNTING CHANGES The CICA issued revisions to section 1506 of the CICA Handbook, ACCOUNTING CHANGES. The revisions established criteria for changing accounting policies, together with the accounting treatment and disclosure of changes in accounting policies and estimates, and correction of errors. The revisions are effective for annual and interim periods statements relating to years beginning on or after January 1, 2007. The Corporation is currently evaluating the impact of this section on the consolidated financial statements. 3 - CAPITAL ASSETS <Table> <Caption> 2006 ---------------------------------------------- ACCUMULATED COST AMORTIZATION NET --------- ------------ ------- $ $ $ Furniture and equipment 320,113 320,002 111 Computer equipment 587,571 485,540 102,031 Leasehold improvements 287,610 158,385 129,225 --------- ------------ ------- 1,195,294 963,927 231,367 ========= ============ ======= <Caption> 2005 ---------------------------------------------- Accumulated Cost amortization Net --------- ------------ ------- $ $ $ Furniture and equipment 320,113 317,189 2,924 Computer equipment 515,331 380,173 135,158 Leasehold improvements 287,610 128,957 158,653 --------- ------------ ------- 1,123,054 826,319 296,735 ========= ============ ======= </Table> Amortization expense of capital assets amounted to $137,608 in 2006 ($166,248 in 2005). 4 - OTHER ASSETS <Table> <Caption> 2006 ---------------------------------------------- ACCUMULATED COST AMORTIZATION NET --------- ------------ ------- $ $ $ Contract costs 471,100 249,407 221,693 ========= ============ ======= </Table> 19 <Page> SAND TECHNOLOGY INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS July 31, 2006 (In Canadian dollars) 4 - OTHER ASSETS (CONTINUED) <Table> <Caption> 2005 ---------------------------------------------- Accumulated Cost amortization Net --------- ------------ ------- $ $ $ Contract costs 471,100 138,560 332,540 ========= ============ ======= </Table> Amortization expense of contract costs amounted to $110,847 in 2006 ($110,848 in 2005). 5 - COMMON STOCK A) AUTHORIZED 2005 TRANSACTIONS The Corporation repurchased 276,038 class "A" common shares for $316,307 under the program adopted on December 17, 2003, including 179,362 class "A" common shares for $186,469 from August 1, 2004 to December 22, 2004. 2004 TRANSACTIONS During the year, the Corporation repurchased 70,100 class "A" common shares for $111,668 under the program adopted on October 15, 2002. On December 17, 2003, the Corporation announced that its Board of Directors had authorized a share repurchase program under which it may repurchase up to a maximum of 654,710 of its outstanding class "A" common shares from December 22, 2003 to December 22, 2004. The Corporation repurchased 96,676 class "A" common shares for $129,838 under this program from December 22, 2003 to July 31, 2004. B) STOCK OPTION PLANS The Corporation has two stock option plans. Under the 1996 Stock Incentive Plan, the Corporation may grant options to its regular full-time employees and those of its subsidiaries up to a maximum of 1,100,000 common shares. Under the 1996 Stock Option Plan, the Corporation may grant options to its regular full-time employees and non-employee directors and those of its subsidiaries up to a maximum of 900,000 common shares. Under both plans, the exercise price of each option is not less than the market price of the Corporation's shares on the OTC BB on the day prior to the date of grant. Options vest equally over a five-year period and the options' maximum term is 10 years. 20 <Page> SAND TECHNOLOGY INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS July 31, 2006 (In Canadian dollars) 5 - COMMON STOCK (CONTINUED) Activity in the stock option plans for 2006, 2005 and 2004 was as follows: <Table> <Caption> 2006 2005 2004 -------------------------- -------------------------- --------------------------- WEIGHTED Weighted Weighted NUMBER OF AVERAGE Number of average Number of average OPTIONS EXERCISE PRICE options exercise price options exercise price --------- -------------- --------- -------------- --------- -------------- (000S) $US (000s) $US (000s) $US Outstanding, beginning of year 1,121 2.10 1,478 2.15 1,247 2.41 Granted 133 1.00 163 1.00 261 1.16 --------- --------- --------- 1,254 1,641 1,508 Forfeited 213 3.95 520 1.89 30 4.58 --------- --------- --------- Outstanding, end of year 1,041 1.59 1,121 2.10 1,478 2.15 ========= ========= ========= Options exercisable, end of year 609 1.84 622 2.61 592 2.83 ========= ========= ========= </Table> 21 <Page> SAND TECHNOLOGY INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS July 31, 2006 (In Canadian dollars) 5 - COMMON STOCK (CONTINUED) The following table summarizes significant ranges of exercise prices of outstanding options held by directors, officers and employees as of July 31, 2006: <Table> <Caption> Options outstanding Options exercisable ----------------------------------------------- ----------------------------- Weighted average Weighted Weighted Number of remaining life average Number of average Range of exercise prices options (years) exercise price options exercise price - ------------------------ --------- -------------- -------------- --------- -------------- (000s) a) US$ (000s) US$ Less than US$1.00 160 0.69 160 0.69 US$1.00 to US$1.49 716 7.27 1.02 306 1.04 US$3.00 to US$3.99 20 3.37 20 3.37 US$4.00 to US$4.99 30 1.49 4.63 30 4.63 US$5.00 to US$5.99 105 5.49 5.07 83 5.09 US$6.00 to US$6.99 10 3.06 6.28 10 6.28 --------- --------- 1,041 5.62 1.59 609 1.84 ========= ========= </Table> a) After the end of the 2006 fiscal year, the Corporation has extended the term of both the Stock Incentive Plan and the Stock Option Plan for an additional 10 years. Moreover, the Corporation has extended the term of the outstanding options as of July 8, 2006, under both plans, by an additional 10 years. The following table presents the weighted average assumptions used to determine the stock-based compensation expense included in selling, general and administrative expenses for the years ended July 31, 2006, 2005 and 2004, using the Black-Scholes option-pricing model: <Table> <Caption> 2006 2005 2004 ------- ------- -------- Compensation cost $29,000 $25,000 $ 49,000 Fair value $31,350 $92,170 $247,607 Dividend yield - - - Expected volatility 90% 90% 52% Risk-free interest rate 3.5% 3.3% 4.4% Expected life 7 YEARS 7 years 7 years Number of options granted 133,000 162,500 261,000 </Table> 22 <Page> SAND TECHNOLOGY INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS July 31, 2006 (In Canadian dollars) 5 - COMMON STOCK (CONTINUED) For stock options granted to employees during 2003, had the Corporation determined compensation cost based on the fair value of the stock options at grant dates consistently with the method recommended under CICA Handbook section 3870, the Corporation's earnings would have been reported at the pro-forma amounts indicated below: <Table> <Caption> 2006 2005 2004 ---------- ---------- ---------- $ $ $ Net loss, as reported (3,926,921) (7,363,054) (7,129,930) Fair value of stock-based compensation (56,796) (103,603) (93,686) ---------- ---------- ---------- Pro-forma net loss (3,983,717) (7,466,657) (7,223,616) ========== ========== ========== Pro-forma basic and diluted loss per share (0.31) (0.58) (0.55) ========== ========== ========== </Table> The fair value of stock options granted during 2003 was estimated using the Black-Scholes option pricing model using the following weighted average assumptions: <Table> Dividend yield - Expected volatility 87% Risk-free interest rate 4.8% Expected life 7 years </Table> C) LOSS PER SHARE Options described above were not included in the diluted loss per share calculation because the Corporation incurred a loss, and inclusion would have created an anti-dilutive effect. 6 - RESEARCH AND DEVELOPMENT The net amounts of research and development expenses presented in the consolidated statements of operations have been determined as follows: <Table> <Caption> 2006 2005 2004 --------- --------- --------- $ $ $ Research and development expenses 2,541,950 3,472,102 3,679,285 Government assistance Investment tax credits (100,000) (200,000) (370,496) --------- --------- --------- 2,441,950 3,272,102 3,308,789 ========= ========= ========= </Table> Investment tax credits in accounts receivable as at July 31, 2006 amounted to $100,000. There were no amounts receivable as at July 31, 2005. 23 <Page> SAND TECHNOLOGY INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS July 31, 2006 (In Canadian dollars) 7 - INCOME TAXES The reconciliation of income taxes at Canadian statutory rates with the reported income taxes is as follows: <Table> <Caption> 2006 2005 2004 ---------- ---------- ---------- $ $ $ Income tax recovery at Canadian statutory rates (1,257,000) (2,368,000) (2,266,000) Non-recording of benefit from losses carried forward (1,257,000) (2,368,000) (2,266,000) ---------- ---------- ---------- - - - ========== ========== ========== </Table> The significant components of the Corporation's future income tax assets and liabilities are as follows: <Table> <Caption> 2006 2005 ----------- ----------- $ $ Future tax assets Losses carried forward 15,000,000 14,908,000 Capital assets 150,000 142,000 Research and development 3,400,000 3,400,000 ----------- ----------- 18,550,000 18,450,000 Future tax liabilities Investment tax credits 64,000 64,000 ----------- ----------- 18,486,000 18,386,000 Less: valuation allowance (18,486,000) (18,386,000) ----------- ----------- Net future income taxes - - =========== =========== </Table> The Corporation has non-capital losses carried forward to reduce future taxable income for Canadian federal and provincial tax purposes as well as American, British and German tax purposes of approximately $14,000,000 and $12,000,000, US$21,000,000, POUND 700,000 and EURO 3,800,000, respectively, expiring at various dates to 2020. In addition, the Corporation has research and development expenditures carried forward of approximately $10,000,000, which can be used to reduce taxable income at any time in the future, and investment tax credits of approximately $2,500,000, which can be applied against future federal income taxes payable, expiring at various dates to 2016. The benefits of these items have not been recognized in the financial statements. 24 <Page> SAND TECHNOLOGY INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS July 31, 2006 (In Canadian dollars) 8 - COMMITMENTS The Corporation is committed under operating leases for a total amount of $1,368,898. The minimum payments due in each of the forthcoming years are as follows: <Table> <Caption> $ --------- 2007 382,665 2008 308,136 2009 270,907 2010 244,314 2011 162,876 --------- 1,368,898 ========= </Table> 9 - SEGMENTED INFORMATION The Corporation is considered to have only one business segment. The Corporation has two reportable geographic segments. Both the North American and European segments market the SAND Analytical Server and the SAND Searchable Archive. The accounting policies of the segments are the same as described in the summary of significant accounting policies. The Corporation evaluates segment performance based on income before taxes. Sales for each segment are based on the location of the third party customer. All intercompany transactions between segments have been eliminated. <Table> <Caption> Canada Europe Total ---------- ---------- ---------- $ $ $ 2006 Revenue 1,634,977 3,842,508 5,477,485 Loss before income taxes (3,924,363) (2,558) (3,926,921) Identifiable assets 1,630,133 1,814,988 3,445,121 2005 Revenue 2,899,252 3,196,781 6,096,033 Loss before income taxes (5,965,661) (1,397,393) (7,363,054) Identifiable assets 6,538,484 1,396,047 7,934,531 2004 Revenue 1,503,184 3,846,030 5,349,214 Loss before income taxes (6,799,588) (330,342) (7,129,930) Identifiable assets 12,077,507 3,913,194 15,990,701 </Table> 10 - SIGNIFICANT CUSTOMERS For the year ended July 31, 2006, the Corporation generated approximately 10% of its revenue from one customer (20% from one customer in 2005 and 36% from two customers in 2004). 25 <Page> SAND TECHNOLOGY INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS July 31, 2006 (In Canadian dollars) 11 - FINANCIAL INSTRUMENTS FAIR VALUE OF FINANCIAL INSTRUMENTS The fair value of the short-term financial assets and liabilities approximates their carrying amount given that they will mature shortly. CREDIT RISK The Corporation's exposure to credit risk as of July 31, 2006 is equal to the carrying amount of its financial assets. CONCENTRATION OF CREDIT RISK Credit risk concentration with respect to trade receivables is limited due to the relatively large size of the Corporation's customers. As at July 31, 2006, two customers represented 27% and 28% (three customers represented 55% in 2005) of accounts receivable. CURRENCY RISK The Corporation operates internationally and is exposed to market risk principally due to changes in foreign currency rates. The Corporation does not hold any financial instruments that mitigate this risk. As at July 31, 2006 and 2005, the Corporation's current assets (liabilities) denominated in foreign currencies are as follows: <Table> <Caption> 2006 2005 --------------------------- ------------------------- CURRENT CURRENT Current Current ASSETS LIABILITIES assets liabilities --------- ----------- ------- ----------- $ $ $ $ U.S. dollars 115,133 226,494 614,563 488,362 Pounds sterling 1,379,555 912,955 943,625 907,427 Euros 489,476 307,795 164,321 238,445 </Table> 26 <Page> SAND TECHNOLOGY INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS July 31, 2006 (In Canadian dollars) 12 - RECONCILIATION OF RESULTS REPORTED IN ACCORDANCE WITH CANADIAN GENERALLY ACCEPTED ACCOUNTING PRINCIPLES (GAAP) TO U.S. GAAP AND OTHER SUPPLEMENTARY U.S. GAAP DISCLOSURES Differences between Canadian and U.S. GAAP are not material in the Corporation's consolidated financial statements with the exception of the following: STOCK-BASED COMPENSATION In December 2004, the FASB issued SFAS No. 123 (R), SHARE-BASED PAYMENT, which is a revision of SFAS No. 123 and supersedes APB Opinion No. 25. SFAS No. 123 (R) requires all share-based payments to employees, including grants of employee stock options, to be valued at fair value on the date of grant and to be expensed over the applicable vesting period. Effective August 1, 2005, the Corporation adopted SFAS No. 123 (R) using the modified prospective transition method. Under this transition method, stock-based compensation is recognized for all stock-based awards granted on or after August 1, 2005. In addition, companies must also recognize compensation expense related to any awards that are not fully vested as of August 1, 2005. Compensation expense for the unvested awards are measured based on the fair value of the awards previously calculated in accordance with the provisions of SFAS No. 123. The impact of adopting SFAS No. 123 (R) was to increase the stock-based compensation expense by $37,519 and increase net loss by the same amount in 2006. The following table provides a reconciliation of the net loss and the contributed surplus and deficit under Canadian GAAP to U.S. GAAP: <Table> <Caption> $ ----------- Net loss in accordance with Canadian GAAP (3,926,921) Additional compensation expense under SFAS No. 123 (R) (198,191) ----------- Net loss in accordance with U.S. GAAP (4,125,112) =========== Basic and diluted loss per share, U.S. GAAP (0.32) =========== Contributed surplus in accordance with Canadian GAAP 103,000 Additional compensation expense under SFAS No. 123 (R) 198,191 ----------- Contributed surplus in accordance with U.S. GAAP 301,191 =========== Deficit in accordance with Canadian GAAP (37,190,978) Additional compensation expense under SFAS No. 123 (R) (198,191) ----------- Deficit in accordance with U.S. GAAP (37,389,169) =========== </Table> The following items present other supplementary disclosures required under U.S. GAAP. Accounts receivable are net of allowance for doubtful accounts of nil ($18,909 in 2005). 27 <Page> SAND TECHNOLOGY INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS July 31, 2006 (In Canadian dollars) 12 - RECONCILIATION OF RESULTS REPORTED IN ACCORDANCE WITH CANADIAN GENERALLY ACCEPTED ACCOUNTING PRINCIPLES (GAAP) TO U.S. GAAP AND OTHER SUPPLEMENTARY U.S. GAAP DISCLOSURES (CONTINUED) Accounts payable and accrued liabilities are comprised of the following: <Table> <Caption> 2006 2005 --------- --------- $ $ Trade accounts 471,492 594,026 Accrued payroll payable and related expenses 533,992 844,095 Other 134,859 47,476 --------- --------- 1,140,343 1,485,597 ========= ========= </Table> The amortization expense of contract costs for the next years will be $110,848 for 2007 and $110,845 for 2008. Under U.S. GAAP, research and development investment tax credits (see Note 6) would be classified as a reduction of the income tax expense instead of a reduction of the related research and development expenses. Under Canadian GAAP, future income taxes are calculated based on enacted or substantially enacted tax rates applicable to future years. Under U.S. GAAP, only enacted rates are used in the calculation of future income taxes. This difference in GAAP did not result in a difference in the financial position, results of operations or cash flows of the Corporation for the years presented. COMPREHENSIVE INCOME The Corporation has adopted Statement of Financial Accounting Standards (SFAS) No. 130, REPORTING COMPREHENSIVE INCOME. There are no material differences between the Corporation's net loss as reported and its comprehensive income as defined by SFAS No. 130. Accordingly, a separate statement of comprehensive income has not been presented. STOCK-BASED COMPENSATION The Corporation accounts for its stock-based compensation for options granted prior to August 1, 2003 using the intrinsic value method prescribed by the Accounting Principles Board Opinion No. 25, ACCOUNTING FOR STOCK ISSUED TO EMPLOYEES. U.S. GAAP required companies that follow this method to make pro-forma disclosures of net income and earnings per share, as if the fair value based methodology prescribed by SFAS No. 123, ACCOUNTING FOR STOCK-BASED COMPENSATION, had been applied for the periods presented. For options granted as of August 1, 2003, the Corporation has adopted the fair value method, on a prospective basis. 28 <Page> SAND TECHNOLOGY INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS July 31, 2006 (In Canadian dollars) 12 - RECONCILIATION OF RESULTS REPORTED IN ACCORDANCE WITH CANADIAN GENERALLY ACCEPTED ACCOUNTING PRINCIPLES (GAAP) TO U.S. GAAP AND OTHER SUPPLEMENTARY U.S. GAAP DISCLOSURES (CONTINUED) The following table presents net loss and net loss per share in accordance with U.S. GAAP on a pro-forma basis, giving effect to the pro-forma compensation expense relating to stock options granted to employees after July 1, 1994 and prior to August 1, 2003, in accordance with SFAS No. 123. <Table> <Caption> 2005 2004 ---------- ---------- $ $ Net loss, as reported (7,363,054) (7,129,930) Pro-forma expense (460,948) (615,749) ---------- ---------- Pro-forma net loss (7,824,002) (7,745,679) ========== ========== Pro-forma basic and diluted loss per share (0.61) (0.59) ========== ========== </Table> SFAS No. 123 requires that the pro-forma compensation expense be recognized over the service period based on the fair value of options granted to employees. The pro-forma compensation expense presented above has been estimated using the Black-Scholes option pricing model. In order to perform the calculation, the following weighted average assumptions were used for fiscal year 2003: <Table> Risk-free interest rate 4.8% Dividend yield - Volatility factor of the expected market price of the Corporation's common stock 87% Expected life 7 years </Table> ADOPTION OF NEW ACCOUNTING POLICIES INVENTORY COSTS - AN AMENDMENT OF ACCOUNTING RESEARCH BULLETIN In November 2004, the FASB issued SFAS No. 151, INVENTORY COSTS - AN AMENDMENT OF ACCOUNTING RESEARCH BULLETIN (ARB) NO. 43, CHAPTER 4. The provisions of SFAS No. 151 will be effective beginning in the first quarter of fiscal 2006. The adoption of SFAS No. 151 did not have an impact on the Corporation's consolidated financial statements. ACCOUNTING FOR CONDITIONAL ASSET RETIREMENT OBLIGATIONS - AN INTERPRETATION OF FASB STATEMENT NO. 143 In March 2005, the FASB issued FIN 47, ACCOUNTING FOR CONDITIONAL ASSET RETIREMENT OBLIGATIONS - AN INTERPRETATION OF FASB STATEMENT NO. 143 (FIN 47), which required an entity to recognize a liability for the fair value of a conditional asset retirement obligation when incurred if the liability's fair value can be reasonably estimated. FIN 47 is effective for fiscal years ending after December 15, 2005 and is required to be adopted by the Corporation in the first quarter of fiscal 2006. The adoption of FIN 47 did not have an impact on the Corporation's consolidated financial statements. 29 <Page> SAND TECHNOLOGY INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS July 31, 2006 (In Canadian dollars) 12 - RECONCILIATION OF RESULTS REPORTED IN ACCORDANCE WITH CANADIAN GENERALLY ACCEPTED ACCOUNTING PRINCIPLES (GAAP) TO U.S. GAAP AND OTHER SUPPLEMENTARY U.S. GAAP DISCLOSURES (CONTINUED) In December 2004, the FASB issued SFAS No. 153, EXCHANGES OF NON-MONETARY ASSETS - - AN AMENDMENT OF APB OPINION NO. 29. This standard eliminates the exception from fair value measurement for non-monetary exchanges of similar productive assets. The standard is applicable for fiscal periods beginning after June 15, 2005. The adoption of SFAS No. 153 did not have an impact on the Corporation's consolidated financial statements. RECENT PRONOUNCEMENTS In May 2005, the FASB issued SFAS No. 154, ACCOUNTING CHANGES AND ERROR CORRECTIONS, which replaces Accounting Principles Board Opinion No. 20, ACCOUNTING CHANGES, AND SFAS NO. 3, REPORTING ACCOUNTING CHANGES IN INTERIM FINANCIAL STATEMENTS - AN AMENDMENT OF APB OPINION NO. 28. SFAS No. 154 provides guidance on the accounting for and reporting of accounting changes and error corrections. It establishes retrospective application, or the latest practicable date, as the required method for reporting a change in accounting principle and the reporting of a correction of an error. SFAS No. 154 is effective for accounting changes and corrections of errors made in fiscal years beginning after December 15, 2005 and is required to be adopted by the Corporation in the first quarter of fiscal 2007. The Corporation is currently evaluating the effect that the adoption of SFAS No. 154 will have on its consolidated results of operations and financial condition but does not expect it to have a material impact. In June 2006, the FASB issued FIN 48, ACCOUNTING FOR UNCERTAINTY IN INCOME TAXES - - AN INTERPRETATION OF FASB STATEMENT NO. 109. FIN 48 clarifies SFAS No. 109, ACCOUNTING FOR INCOME TAXES, to indicate a criterion that an individual tax position would have to meet for some or all of the benefit of that position to be recognized in an entity's financial statement. FIN 48 is effective for fiscal year beginning after December 15, 2006. The Corporation is currently evaluating the effect that the adoption of FIN 48 will have on its consolidated results of operations and financial condition. In September 2006, in an effort to increase consistency and comparability in fair value measurements, the FASB recently issued SFAS No.157, FAIR VALUE MEASUREMENT, which defines fair value, establishes guidelines for measuring fair value and expands disclosures regarding fair value measurements. SFAS No. 157 does not require any new instruments to be recognized at fair value. SFAS No. 157 is effective for financial statements issued for fiscal year beginning after November 15, 2007. The Corporation is currently evaluating the effect that the adoption of SFAS No. 157 will have on its consolidated results. 30 <Page> SAND TECHNOLOGY INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS July 31, 2006 (In Canadian dollars) 12 - RECONCILIATION OF RESULTS REPORTED IN ACCORDANCE WITH CANADIAN GENERALLY ACCEPTED ACCOUNTING PRINCIPLES (GAAP) TO U.S. GAAP AND OTHER SUPPLEMENTARY U.S. GAAP DISCLOSURES (CONTINUED) In September 2006, the SEC released Staff Accounting Bulletin (SAB) 108, CONSIDERING THE EFFECTS OF PRIOR YEAR MISSTATEMENTS WHEN QUANTIFYING MISSTATEMENTS IN CURRENT YEAR FINANCIAL STATEMENTS. SAB 108 expresses the SEC staff's views on the process of quantifying potential financial statement misstatements. In general, entities have used two common approaches to quantify errors. The SEC staff believes that registrants should quantify errors using both a balance sheet and an income statement approach (a "dual approach"). Thus entities must adjust the financial statements when either approach results in quantifying a misstatement that is deemed material after considering all relevant quantitative and qualitative factors. SAB 108 is effective for fiscal years ending after November 15, 2006. The adoption of the SAB 108 will not have any impact on the Corporation's consolidated financial statements. 31 <Page> SIGNATURES The registrant hereby certifies that it meets all of the requirements for filing on Form 20-F/A and that it has duly caused and authorized the undersigned to sign this Report on Form 20-F/A on its behalf. SAND TECHNOLOGY INC. /s/ Arthur G. Ritchie ----------------------- June 11, 2007 Arthur G. Ritchie Chairman of the Board, President and Chief Executive Officer 32 <Page> EXHIBIT 12.1 CERTIFICATIONS I, Arthur G. Ritchie, Chairman, President and Chief Executive Officer of Sand Technology Inc., certify that: 1) I have reviewed this annual report on Form 20-F/A of Sand Technology Inc.; 2) Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report; 3) Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the Company as of, and for, the periods presented in this report; 4) The Company's other certifying officers and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the Company and have: a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the Company, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared; b) deleted c) evaluated the effectiveness of the Company's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and d) disclosed in this report any change in the Company's internal control over financial reporting that occurred during the period covered by this annual report that has materially affected, or is reasonably likely to materially affect, the Company's internal control over financial reporting; and 5) The Company's other certifying officers and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the Company's auditors and the audit committee of the Company's board of directors (or persons performing the equivalent functions): 33 <Page> a) All significant deficiencies and material weaknesses in the design or operation of internal controls over financial reporting which are reasonably likely to adversely affect the Company's ability to record, process, summarize and report financial information; and b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the Company's internal control over financial reporting. June 11, 2007 /s/ Arthur Ritchie Chairman of the Board, President and Chief Executive Officer 34 <Page> EXHIBIT 12.2 CERTIFICATIONS I, Gilles Therrien, Vice-President, Finance and Administration, and Chief Financial Officer of Sand Technology Inc., certify that: 1) I have reviewed this annual report on Form 20-F/A of Sand Technology Inc.; 2) Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report; 3) Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the Company as of, and for, the periods presented in this report; 4) The Company's other certifying officers and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the Company and have: a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the Company, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared; b) deleted c) evaluated the effectiveness of the Company's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and d) disclosed in this report any change in the Company's internal control over financial reporting that occurred during the period covered by this annual report that has materially affected, or is reasonably likely to materially affect, the Company's internal control over financial reporting; and 5) The Company's other certifying officers and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the Company's auditors and the audit committee of the Company's board of directors (or persons performing the equivalent functions): a) All significant deficiencies and material weaknesses in the design or operation of internal controls over financial reporting which are reasonably 35 <Page> likely to adversely affect the Company's ability to record, process, summarize and report financial information; and b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the Company's internal control over financial reporting. June 11, 2007 /s/ Gilles Therrien Vice-President, Finance and Administration and Chief Financial Officer 36 <Page> EXHIBIT 13.1 CERTIFICATION of Periodic Financial Report Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350 I, Arthur G. Ritchie, Chairman of the Board, President and Chief Executive Officer of Sand Technology Inc., hereby certify that the Report on Form 20-F/A relative to the Fiscal Year ended July 31, 2006 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and that the information contained in the periodic report fairly presents, in all material respects, the financial condition and results of operations of Sand Technology Inc. Date: June 11, 2007 /s/ Arthur G. Ritchie Chairman of the Board, President and Chief Executive Officer This certification is made solely for the purposes of 18 U.S.C. Section 1350, subject to the knowledge standard set forth therein, and not for any other purpose. It is not being filed as part of the Annual Report or as a separate disclosure document. 37 <Page> EXHIBIT 13.2 CERTIFICATION of Periodic Financial Report Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350 I, Gilles Therrien, Vice-President, Finance and Administration, and Chief Financial Officer of Sand Technology Inc., hereby certify that the Report on Form 20-F/A relative to the Fiscal Year ended July 31, 2006 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and that the information contained in the periodic report fairly presents, in all material respects, the financial condition and results of operations of Sand Technology Inc. Date: June 11, 2007 /s/ Gilles Therrien Vice-President, Finance and Administration and Chief Financial Officer This certification is made solely for the purposes of 18 U.S.C. Section 1350, subject to the knowledge standard set forth therein, and not for any other purpose. It is not being filed as part of the Annual Report or as a separate disclosure document. 38 <Page> EXHIBIT 15.1 CONSENT OF INDEPENDENT REGISTERED CHARTERED ACCOUNTANTS We consent to the incorporation by reference, in Registration Statements No. 333-8538 and No. 333-7462 on Form S-8, in Registration Statement No. 333-12216 on Form F-2 and Registration Statement No. 333-51014 on Form F-3 of our report dated September 16, 2005 on the consolidated financial statements of Sand Technology Inc. (the "Company"), appearing in this Annual Report on Form 20-F/A of the Company, for the year ended July 31, 2006. We also consent to incorporation by reference in the aforementioned Registration Statements of our Comments by Independent Auditors for U.S. Readers on Canada-U.S. Reporting Differences dated September 16, 2005 appearing in this Annual Report on Form 20-F/A of the Company for the year ended July 31, 2006. /s/ Deloitte & Touche LLP Independent Registered Chartered Accountants June 11, 2007 Montreal, Quebec 39