This press release contains "forward-looking information" within the meaning of Canadian securities legislation. This information and these statements, referred to herein as “forward-looking statements”, are made as of the date of this press release and the Corporation does not intend, and does not assume any obligation, to update these forward-looking statements, except as required by law.

These forward-looking statements include, among others, statements with respect to Stornoway’s objectives for the ensuing year, Stornoway’s medium and long-term goals, and strategies to achieve those objectives and goals, as well as statements with respect to Stornoway’s beliefs, plans, objectives, expectations, anticipations, estimates and intentions. Although management considers these assumptions to be reasonable based on information currently available to it, they may prove to be incorrect.

Forward-looking statements relate to future events or future performance and reflect current expectations or beliefs regarding future events and include, but are not limited to, statements with respect to: (i) the amount of Mineral Reserves, Mineral Resources and exploration targets; (ii) the amount of future production over any period; (iii) net present value and internal rates of return of the mining operation; (iv) assumptions relating to recovered grade, average ore recovery, internal dilution, mining dilution and other mining parameters set out in the Updated Renard Diamond Project Mine Plan and Mineral Reserve Estimate, Québec, Canada, NI 43-101 Technical Report (the “2016 Technical Report”) ; (v) assumptions relating to gross revenues, operating cash flow and other revenue metrics set out in the 2016 Technical Report; (vi) mine expansion potential and expected mine life; (vii) expected time frames for completion of permitting and regulatory approval related to construction activities at the Renard Diamond Project; (viii) the expected time frames for the completion of the open pit and underground mine at the Renard Diamond Project; (ix) the expected time frames for the completion of construction, start of mining and commercial production at the Renard Diamond Project and the financial obligations or costs incurred by Stornoway in connection with such mine development; (x) future exploration plans; (xi) future market prices for rough diamonds; (xii) the economic benefits of using liquefied natural gas rather than diesel for power generation; (xiii) sources of and anticipated financing requirements; (xiv) the effectiveness, funding or availability, as the case may require, of the Stream, the Senior Secured Loan, the COF and the Equipment Facility and the use of proceeds therefrom; (xv) the Corporation’s ability to meet its Subject Diamonds Interest delivery obligations under the Purchase and Sale Agreement; and (xvi) the impact of the Financing Transactions on the Corporation’s operations, infrastructure, opportunities, financial condition, access to capital and overall strategy.; (xvii) the foreign exchange rate between the US dollar and the Canadian dollar; and (xviii) the availability of excess funding for the construction and operation of the Renard Diamond Project . Any statements that express or involve discussions with respect to predictions, expectations, beliefs, plans, projections, objectives, assumptions or future events or performance (often, but not always, using words or phrases such as “expects”, “anticipates”, “plans”, “projects”, “estimates”, “assumes”, “intends”, “strategy”, “goals”, “objectives”, “schedule” or variations thereof or stating that certain actions, events or results “may”, “could”, “would”, “might” or “will” be taken, occur or be achieved, or the negative of any of these terms and similar expressions) are not statements of historical fact and may be forward-looking statements.

Forward-looking statements are made based upon certain assumptions by Stornoway or its consultants and other important factors that, if untrue, could cause the actual results, performances or achievements of Stornoway to be materially different from future results, performances or achievements expressed or implied by such statements. Such statements and information are based on numerous assumptions regarding present and future business prospects and strategies and the environment in which Stornoway will operate in the future, including the price of diamonds, anticipated costs and Stornoway’s ability to achieve its goals, anticipated financial performance, regulatory developments, development plans, exploration, development and mining activities and commitments, and the foreign exchange rate between the US and Canadian dollars. Although management considers its assumptions on such matters to be reasonable based on information currently available to it, they may prove to be incorrect. Certain important assumptions by Stornoway or its consultants in making forward-looking statements include, but are not limited to: (i) required capital investment and estimated workforce requirements; (ii) estimates of net present value and internal rates of return; (iii) receipt of regulatory approval on acceptable terms within commonly experienced time frames; (iv) anticipated timelines for completion of construction, commencement of mine production and development of an open pit and underground mine at the Renard Diamond Project, which heavily depends, among other things, on adequate availability and performance of skilled labour, engineering and construction personnel, performance of mining and construction equipment and timely delivery of components;‎ (v) anticipated geological formations; (vi) market prices for rough diamonds and the potential impact on the Renard Diamond Project; (vii) the satisfaction or waiver of all conditions under each of the Senior Secured Loan, the COF and the Equipment Facility to allow the Corporation to draw on the funding available under those financing elements for the completion of the development and construction of the Renard Diamond Project; (viii) Stornoway’s interpretation of the geological drill data collected and its potential impact on stated Mineral Resources and mine life; (ix) future exploration plans and objectives; (x) the Corporation’s ability to meet its delivery obligations under the Steaming Agreement; and (xi) the continued strength of the US dollar against the Canadian dollar. Additional risks are described in Stornoway's most recently filed Annual Information Form, annual and interim MD&A, and other disclosure documents available under the Corporation’s profile at: www.sedar.com.

By their very nature, forward-looking statements involve inherent risks and uncertainties, both general and specific, and risks exist that estimates, forecasts, projections and other forward-looking statements will not be achieved or that assumptions do not reflect future experience. We caution readers not to place undue reliance on these forward- looking statements as a number of important risk factors could cause the actual outcomes to differ materially from the beliefs, plans, objectives, expectations, anticipations, estimates, assumptions and intentions expressed in such forward-looking statements. These risk factors may be generally stated as the risk that the assumptions and estimates expressed above do not occur, including the assumption in many forward-looking statements that other forward-looking statements will be correct, but specifically include, without limitation: (i) risks relating to variations in the grade, kimberlite lithologies and country rock content within the material identified as Mineral Resources from that predicted; (ii) variations in rates of recovery and breakage; (iii) the uncertainty as to whether further exploration of exploration targets will result in the targets being delineated as Mineral Resources; (iv) developments in world diamond markets; (v) slower increases in diamond valuations than assumed; (vi) risks relating to fluctuations in the Canadian dollar and other currencies relative to the US dollar; (vii) increases in the costs of proposed capital and operating expenditures; (viii) increases in financing costs or adverse changes to the terms of available financing, if any; (ix) tax rates or royalties being greater than assumed; (x) uncertainty of results of exploration in areas of potential expansion of resources; (xi) changes in development or mining plans due to changes in other factors or exploration results; (xii) changes in project parameters as plans continue to be refined; (xiii) risks relating to the receipt of regulatory approval or the implementation of the existing Impact and Benefits Agreement with aboriginal communities; (xiv) the effects of competition in the markets in which Stornoway operates; (xv) operational and infrastructure risks; (xvi) execution risk relating to the development of an operating mine at the Renard Diamond Project; (xvii) failure to satisfy the conditions to the effectiveness, funding or availability, as the case may require, of each of the Stream, the Senior Secured Loan, the COF and the Equipment Facility; (xviii) changes in the terms of the Stream, the Senior Secured Loan, the COF or the Equipment Facility; (xix) the funds of the Stream, the Senior Secured Loan, the COF or the Equipment Facility not being available to the Corporation; (xx) the Corporation being unable to meet its delivery obligations under the Stream; (xxi) future sales or issuance of Common Shares lowering the Common Share price and diluting the interest of existing shareholders; and (xxi) the additional risks described in Stornoway's most recently filed Annual Information Form, annual and interim MD&A and Stornoway's anticipation of and success in managing the foregoing risks. Stornoway cautions that the foregoing list of factors that may affect future results is not exhaustive, and unforeseeable, new risks may arise from time to time.