Exhibit 99.1

FOR IMMEDIATE RELEASE

SUNOPTA ANNOUNCES THIRD QUARTER 2014 RESULTS

Toronto, November 11, 2014 - SunOpta Inc. (“SunOpta” or “the Company”) (Nasdaq:STKL) (TSX:SOY), a leading global company focused on natural, organic and specialty foods, today announced financial results for the third quarter ended October 4, 2014. All amounts are expressed in U.S. dollars and results are reported in accordance with U.S. GAAP, except where specifically noted.

Third Quarter 2014 Highlights

• Revenues of $318.5 million, an increase of 10.1% on a consolidated basis, and 11.0% within SunOpta Foods, after excluding the impact of changes including commodity prices, foreign exchange rates and the impact of downtime due to aseptic facility expansions.
• Operating income¹ of $12.7 million, or 4.0% of revenues, an increase of 29% versus prior year.
• EBITDA¹ of $18.7 million, or 5.9% of revenues, an increase of 22% versus prior year.
• Adjusted earnings from continuing operations¹ of $8.0 million, or $0.12 per diluted common share, versus $4.8 million or $0.07 per diluted common share in the prior year.
• Cash provided by operations of $18.0 million.
• Net debt of $143.3 million, the lowest level since December 2010.

(All comparisons above are to the quarter ended September 28, 2013)

“We remained focused on our core strategies during the quarter and continued to realize the benefits of our operational realignment and re-positioned go-to-market strategy. Our results reflect strong demand for healthy foods products combined with our continued investment in our core business as we position SunOpta for long-term growth,” commented Steve Bromley, Chief Executive Officer, SunOpta Inc.

Year-to-date 2014 Highlights

• Record revenues of $990.4 million, an increase of 11.4% on a consolidated basis, and 13.3% within SunOpta Foods, after excluding the impact of changes including commodity prices, foreign exchange rates and the impact of downtime due to aseptic facility expansions.
• Operating income¹ of $41.5 million, or 4.2% of revenues, an increase of 23% versus prior year.
• EBITDA¹ of $59.3 million, or 6.0% of revenues, an increase of 18% versus prior year.
• Adjusted earnings from continuing operations¹ of $22.8 million, or $0.33 per diluted common share, versus $17.1 million or $0.25 per diluted common share in the prior year.
• Cash provided by operations of $38.6 million.

(All comparisons above are to the three quarters ended September 28, 2013)

Mr. Bromley continued, “We continue to focus on our core foods business, and believe that our integrated natural and organic foods platform is well positioned to capitalize on opportunities from an increasing global awareness of healthy eating. Consistent with our strategies to exit our non-core investments, Mascoma Corporation sold its yeast business on October 31, 2014 and our evaluation of strategic options for Opta Minerals is ongoing.”

Third Quarter 2014 Results

Revenues increased 5.2% to $318.5 million compared to $302.7 million in the third quarter of 2013. Excluding the impact of changes including commodity prices, foreign exchange rates, and downtime due to facility expansions, consolidated revenues increased 10.1% and SunOpta Foods revenues increased 11.0% versus the prior year. All core foods operating segments realized increased revenues versus the prior year. The increase in revenues was led by stronger demand for organic ingredients in the U.S. and Europe; growth in consumer packaged categories including aseptic beverage products and retail frozen foods; and increased value-added fruit ingredient volumes. This growth more than offset lower priced volumes of specialty grain products.

Operating income¹ was $12.7 million, or 4.0% of revenues, compared to $9.8 million, or 3.2% of revenues in the third quarter of 2013. SunOpta Foods operating income, including corporate services, was $11.8 million, or 4.2% of revenues, compared to $8.1 million, or 3.0% of revenues in the prior year, an increase of 45%. The growth in operating income was driven by increased volume and margins on organic raw materials, improved performance in the Company’s sunflower operations, and increased contribution from higher margin aseptic beverage and frozen private-label retail products. These positive factors were partially offset by lower margins on specialty corn sales, increased competitive pressures in the re-sealable pouch market and lower plant utilization in the Company’s premium juice operation during the retrofit of this facility. Pricing pressures on certain steel and industrial mineral products in Opta Minerals, and beverage facility expansion costs within the Consumer Products Group negatively impacted operating income in the quarter.

The Company realized Adjusted earnings from continuing operations¹ in the third quarter of $8.0 million, or $0.12 per diluted common share, excluding a non-cash impairment charge on its investment in Mascoma. Including this impairment charge, the Company realized a loss from continuing operations for the third quarter of 2014 of $0.4 million, or $0.01 per common share, compared to earnings of $2.9 million, or $0.04 per diluted common share, during the third quarter of 2013.

Included in the results for the third quarter of 2014 is a non-cash charge of approximately $8.4 million after tax, or $0.12 per diluted common share, representing a write-down of the carrying value of SunOpta’s non-core investment in Mascoma Corporation. On October 31, 2014, Mascoma sold assets related to its bioengineered yeast business, in exchange for cash and certain royalty rights based on future revenues generated by the purchaser. After assessing the fair value of the remaining assets of the business, including the potential value of the royalty stream, the Company determined that its investment in Mascoma was impaired. SunOpta’s investment in Mascoma was originally established in the third quarter of 2010 following the sale of SunOpta BioProcess Inc. in return for a minority equity stake in Mascoma. At that time, a non-cash gain on sale was recognized and Adjusted earnings were reported to exclude the effect of the gain.

The third quarter also included approximately $2.0 million in costs in the consumer products segment associated with beverage facility expansions and the retrofit of the Company’s premium juice operation, as well as a gain of approximately $0.9 million related to a tax recovery recorded by Opta Minerals.

Included in the results for the third quarter of 2013 was a non-cash goodwill impairment charge for $3.6 million as well as other asset impairments and restructuring costs for $0.8 million (in aggregate $1.9 million net of tax and minority interest) related mainly to Opta Minerals, or $0.03 per diluted common share. Excluding these charges, Adjusted earnings from continuing operations¹ for the third quarter of 2013 were $4.8 million or $0.07 per diluted common share.

EBITDA¹ was $18.7 million in the third quarter of 2014, compared to $15.3 million in the prior year, an increase of 22%.

Year-to-date 2014 Results

Revenues increased 10.4% to a record $990.4 million for the first three quarters of 2014, compared to $896.7 million in the first three quarters of 2013. The increase in consolidated revenues was driven by strong demand for internationally sourced organic raw materials, continued growth in consumer packaged categories including aseptic beverages, frozen foods, and re-sealable pouch products, as well as new value-added ingredient business. This growth more than offset lower commodity grain sales and declines within Opta Minerals Inc. Fiscal 2014 is a 53-week year, and the extra week fell in the first quarter, resulting in a 40-week period for the first three quarters of 2014, versus 39 weeks for the first three quarters of 2013. Excluding the extra week of sales, as well as the impact of changes including commodity prices, foreign exchange rates and downtime due to facility expansions, revenues in SunOpta Foods increased 13.3% versus the prior year and consolidated revenues increased 11.4% .

Operating income¹ for the first three quarters of 2014 was $41.5 million, or 4.2% of revenues, compared to $33.8 million, or 3.8% of revenues in the first three quarters of 2013. The improved operating earnings were driven by increased volume and margins on organic raw materials, improved performance in the sunflower category, and increased volume of consumer products including aseptic beverages and frozen foods, offset by margin pressure experienced in Opta Minerals, increased costs and competitive pressures in the re-sealable pouch market and increased costs associated with the retrofit of the Company’s premium juice operation. SunOpta Foods’ operating income, including Corporate Services, was $38.0 million, or 4.3% of revenues, compared to $28.7 million or 3.6% of revenues in the prior year.

Adjusted earnings from continuing operations¹ for the first three quarters of 2014 were $22.8 million, or $0.33 per diluted common share, excluding the impact of the non-cash impairment charge and other income. Including these items, earnings from continuing operations for the first three quarters of 2014 were $15.0 million, or $0.22 per diluted common share, compared to a loss of $6.9 million, or $0.10 per common share, during the first three quarters of 2013. Included in the results for the first three quarters of 2014 was the non-cash charge of approximately $8.4 million after tax, or $0.12 per diluted common share, reflecting the write-down of the Company's investment in Mascoma, as well as $0.6 million of after tax income, relating to gains on sales of assets net of severance and other asset write-downs.

The loss incurred in the first three quarters of 2013 was due mainly to a $21.5 million non-cash impairment of the Company's investment in Mascoma recognized in the prior year, as well as the $3.6 million goodwill impairment and $1.8 million in asset write-downs and restructuring charges (in aggregate $24.0 million net of tax and minority interest). Excluding these charges and the impact of discontinued operations, Adjusted earnings from continuing operations¹ for the first three quarters of 2013 were $17.1 million or $0.25 per diluted common share.

EBITDA¹ was $59.3 million in the first three quarters of 2014, compared to $50.2 million in the prior year, an increase of 18%.

Balance Sheet

The Company's balance sheet remains strong and at October 4, 2014 reflected a net debt to equity ratio of 0.42 to 1.00. Cash provided by operations was $18.0 million during the third quarter and $38.6 million for the first three quarters of 2014, reflecting improved earnings and working capital efficiency. At October 4, 2014, the Company had total debt outstanding of $150.8 million, net debt of $143.3 million, total assets of $677.5 million, shareholders' equity of $342.1 million and a net book value of $5.10 per outstanding share.

Conference Call

The Company plans to host a conference call at 10:00 A.M. Eastern Time on Wednesday, November 12, 2014 to discuss the results for the third quarter of 2014 and recent corporate developments. After opening remarks, there will be a question and answer period. This conference call can be accessed via a link at the Company's website at www.sunopta.com. To listen to the live call over the Internet, please go to the Company's website at least 15 minutes early to register, download and install any necessary audio software. Additionally, the call may be accessed with the toll free dial-in number (877) 312-9198 or international dial-in number (631) 291-4622. If you are unable to listen live, the conference call will be archived and can be accessed for approximately 90 days at the Company's website.

¹See discussion of non-GAAP measures and Adjusted earnings from continuing operations

About SunOpta Inc.

SunOpta Inc. is a leading global company focused on natural, organic and specialty foods products. The Company specializes in sourcing, processing and packaging of natural and organic food products, integrated from seed through packaged products; with a focus on strategically vertically integrated business models. The Company's core natural and organic food operations focus on value-added grains, fiber and fruit based product offerings, supported by a global infrastructure. The Company has two non-core holdings, a 66.0% ownership position in Opta Minerals Inc., listed on the Toronto Stock Exchange, a producer, distributor, and recycler of environmentally friendly industrial materials; and a minority ownership position in Mascoma Corporation, an innovative biofuels company.

Forward-Looking Statements

Certain statements included in this press release may be considered "forward-looking statements" within the meaning of the United States Private Securities Litigation Reform Act of 1995 and applicable Canadian securities legislation, which are based on information available to us on the date of this release. These forward-looking statements include, but are not limited to, the expected benefits of our operational realignment and our positioning for long-term growth and to capitalize on opportunities presented by current market trend. The terms and phrases "continue", "positioned", "believe", "remains" and other similar terms and phrases are intended to identify these forward looking statements. Forward looking statements are based on information available to us on the date of this release and are based on estimates and assumptions made by the Company in light of its experience and its perception of historical trends, current conditions and expected future developments as well as other factors the Company believes are appropriate in the circumstances including, but not limited to, general economic conditions, consumer interest in health and wellness, product pricing levels, current customer demand, planned facility and operational expansions, competitive intensity, cost rationalization and product development initiatives. Whether actual timing and results will agree with expectations and predications of the Company is subject to many risks and uncertainties including, but not limited to, global economic conditions, consumer spending patterns and changes in market trends, decreases in customer demand, delayed or unsuccessful product development efforts, potential product recalls, working capital management and continuous improvement initiatives, availability and pricing of raw materials and supplies, potential covenant breaches under our credit facilities and other risks described from time to time under "Risk Factors" in the Company's Annual Report on Form 10-K and its Quarterly Reports on Form 10-Q (available at www.sec.gov). Consequently all forward-looking statements made herein are qualified by these cautionary statements and there can be no assurance that the actual results or developments anticipated by the Company will be realized.

For further information, please contact:

SunOpta Inc.
www.sunopta.com

Investor Relations
Susan Wiekenkamp, Information Officer
Tel: 905-455-2528, ext.103
Susan.wiekenkamp@sunopta.com

Public Relations
Rob Litt, Director Global Communications
Tel: 952-893-7863
Rob.litt@sunopta.com

(Segment operating income (loss) is defined as “Earnings from continuing operations before the following” excluding the impact of “Other expense (income), net” and “Goodwill impairment”.)

¹Non-GAAP Measures

In addition to reporting financial results in accordance with U.S. GAAP, the Company provides information regarding segment operating income and earnings before interest, taxes, depreciation and amortization (“EBITDA”) as additional information about its operating results, which are not measures in accordance with U.S. GAAP. The Company believes that these non-GAAP measures assist investors in comparing performance across reporting periods on a consistent basis by excluding items that are not indicative of the Company’s core operating performance. The non-GAAP measures of segment operating income and EBITDA should not be considered in isolation or as a substitute for performance measures calculated in accordance with U.S. GAAP.

The Company defines segment operating income as “earnings from continuing operations before the following” excluding the impact of other income/expense items and goodwill impairments; and EBITDA as segment operating income plus depreciation and amortization. The following is a tabular presentation of segment operating income and EBITDA, including a reconciliation to earnings (loss) from continuing operations, which the Company believes to be the most directly comparable U.S. GAAP financial measure:

The Company also reported Adjusted earnings from continuing operations and Adjusted earnings per diluted share for the quarter and three quarters ended October 4, 2014. Adjusted earnings from continuing operations and Adjusted earnings per diluted share are also non-GAAP financial measures.

For the quarter and three quarters ended October 4, 2014, the Company recognized specific charges and gains that we do not believe are reflective of normal business operations. We have excluded the impairment loss on our investment in Mascoma, as well as net gains on the sale of assets and the settlement of acquisition-related contingencies; severance and other rationalization costs; and long-lived asset impairments all reported in “Other expense (income), net” to arrive at Adjusted earnings from continuing operations and Adjusted earnings per diluted share.

For the quarter and three quarters ended September 28, 2013, we have excluded an impairment of goodwill recognized in our Opta Minerals operating segment recognized in the third quarter of 2013, an impairment loss on our investment in Mascoma recognized in the second quarter of 2013, as well as severance, facility restructuring and long-lived asset write-downs all reported in "Other expense, net" to arrive at Adjusted earnings from continuing operations and Adjusted earnings per diluted share.

The following is a tabular presentation for the quarter and three quarters ended October 4, 2014 as well as the quarter and three quarters ended September 28, 2013 of Adjusted earnings from continuing operations and Adjusted earnings per diluted share, including a reconciliation to U.S. GAAP earnings attributable to SunOpta Inc. and U.S. GAAP earnings attributable to SunOpta Inc. on a per diluted share basis, which the Company believes to be the most directly comparable U.S. GAAP financial measures.