technology transfer expenses payable to CMO providers, costs and expenses associated with our clinical trials, including payments to clinical research centers, CROs involved in the clinical trials, and third-parties providing logistics and testing services, as well as costs and expenses relating to construction and bringing online of our in-house manufacturing facilities. In addition, we incur significant annual payment and royalty expenses related to our in-licensing agreements with different parties including Institut Pasteur (expired in 2020), LifeTechnologies and University of Minnesota. We also incur substantial expenses related to audit, legal, regulatory and tax related services associated with our public company obligations in the United States and our continued compliance with applicable U.S. exchange listing and SEC requirements.
To date, we have not generated any revenues from therapeutic product sales. In addition to our cash generated by operations (including payments under our collaboration agreements), we have funded our operations primarily through private and public offerings of our equity securities, grant revenues, payments received under intellectual property licenses, and reimbursements of research tax credits.
We do not know when, or if, we will generate any revenues from therapeutic product sales. We do not expect to generate significant revenues from product sales unless and until we obtain regulatory approval of and commercialize one of our current or future therapeutic product candidates.
In August 2020, Calyxt announced a transition to a capital-efficient business model comprising three differentiated go-to-market strategies. As part of the transition of strategy, Calyxt stopped processing soybeans into oil and meal and restructured its personnel involved in soybean processing and downstream product sales. In the fourth quarter of 2020, Calyxt announced having contracted to sell all its 2020 grain production (approximately four million bushels) of high oleic soybean to Archer Daniels Midland (ADM). To date, Calyxt has sold more than 50%of the 2020 grain crop to ADM with the remaining grain projected to be sold throughout 2021 under existing contracts. While Calyxt will opportunistically engage in arrangements under each available go-to-market strategy, it has determined to pursue trait development and licensing with respect to all of the products currently under development at Calyxt. This primary focus on trait development and licensing provides a capital-efficient, lower-cost, and highly scalable approach. Calyxt has not yet generated substantial third-party licensing revenue, and we do not know when, or if, Calyxt will generate substantial revenues from the implementation of its primary go-to-market strategy.
We are subject to all risks incident in the development of new gene therapy products, and we may encounter unforeseen expenses, difficulties, complications, delays and other unknown factors that may adversely affect our business. We are also subject to all risks incident in the development of new plant-based innovations and solutions, and we may encounter unforeseen expenses, difficulties, complications, delays and other unknown factors that may adversely affect our business.
We anticipate that we will need additional funding in connection with our continuing operations, including for the further development of our existing product candidates and to pursue other development activities related to additional product candidates.
We believe that the consolidated cash, cash equivalents, current financial assets and restricted cash position of Calyxt as of March 31, 2021 will be sufficient to fund their operations into the second half of 2022 while amounts attributable to Cellectis after taking into consideration $45.5 million of net equity proceeds raised pursuant to the Company’s “At the Market” (ATM) program in April 2021 will be sufficient to fund our operations into early 2023.
Until we can generate a sufficient amount of revenues from our products, if ever, we expect to finance a portion of future cash needs through public or private equity or debt offerings. Additional capital may not be available on reasonable terms, if at all. If we are unable to raise additional capital in sufficient amounts or on terms acceptable to us, we may have to significantly delay, scale back or discontinue the development or commercialization of one or more of our product candidates. If we raise additional funds through the issuance of additional debt or equity securities, it could result in
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