- Investment to Fund Phase 1 Study in Renal Allograft Antibody-Mediated Rejection (AMR) in China

SOUTH SAN FRANCISCO, CALIFORNIA / ACCESS Newswire / December 11, 2025 / CASI Pharmaceuticals, Inc. (NASDAQ:CASI, the ", Company", )), a clinical-stage biopharmaceutical company developing CID-103, an anti-CD38 monoclonal antibody, for patients with organ transplant rejection and autoimmune diseases, today announced that the Company has entered into a convertible note purchase agreement (the "Purchase Agreement") with ETP Global III Fund LP, a partnership controlled by Dr. Wei-Wu He (the "Purchaser"), pursuant to which the Company will issue and sell convertible notes in an aggregate principal amount of US $20 million to the Purchaser through a private placement. This investment is planned to provide runway to fund the Company through a Phase 1 study in China in renal allograft anti-body-mediated rejection (AMR) as well as development toward a stable, high concentration protein solution for subcutaneous formulation.

The sale of the convertible notes will be in tranches and subject to multiple closings with certain closing conditions, including Purchaser being satisfied with the business results and financials status of the Company and the use of proceeds upon each closing.

Each convertible note issued pursuant to the Purchase Agreement will mature in 36 months, bearing interest of 12% per annum from the issuance date. Upon maturity, each note may, at the Company's option, be convertible into ordinary shares of the Company, par value US $0.0001 per share (the "Shares"), at a conversion price of the volume weighted average closing price of the Company's Shares during the five consecutive trading days immediately preceding the maturity date. The Purchaser also has the right to convert each note into Shares at any time from and including the 91st day after the issuance thereof to and including the maturity date at a conversion price of the volume weighted average closing price of the Company's Shares during the five consecutive trading days immediately preceding the date of conversion notice by the Purchaser. In no event shall the conversion price be higher than US $2 per ordinary Share or lower than US $1 per Share.

About CASI Pharmaceuticals

CASI Pharmaceuticals, Inc. is a public biopharmaceutical company developing CID-103, an anti-CD38 monoclonal antibody for organ transplant rejection and autoimmune diseases.

CID-103 is a fully human IgG1, potentially best-in-class, clinical stage, anti-CD38 monoclonal antibody which targets a unique epitope and has demonstrated an encouraging pre-clinical efficacy and clinical safety profile compared to other anti-CD38 monoclonal antibodies, and for which CASI owns exclusive global rights. CASI received FDA IND clearance to conduct a Phase 1 study in renal allograft antibody-mediated rejection (AMR) in the U.S. In parallel, CASI is actively recruiting and dosing patients in an ongoing Phase 1 study in immune thrombocytopenia (ITP). In addition, CASI is assessing multiple technologies for development of a stable, high concentration protein solution for subcutaneous formulation.

More information on CASI is available at www.casipharmaceuticals.com.

Forward Looking Statements

This announcement contains forward-looking statements. These statements are made under the "safe harbor" provisions of the U.S. Private Securities Litigation Reform Act of 1995. These forward-looking statements can be identified by terminology such as "will," "expects," "anticipates," "future," "intends," "plans," "believes," "estimates," "confident" and similar statements. Among other things, the business outlook and quotations from management in this announcement, as well as the Company's strategic and operational plans, contain forward-looking statements. The Company may also make written or oral forward-looking statements in its periodic reports to the U.S. Securities and Exchange Commission (the "SEC"), in its annual report to shareholders, in press releases and other written materials and in oral statements made by its officers, directors or employees to third parties. Statements that are not historical facts, including statements about the Company's beliefs and expectations, are forward-looking statements. Forward-looking statements involve inherent risks and uncertainties. A number of factors could cause actual results to differ materially from those contained in any forward-looking statement, including but not limited to the following: uncertainties related to the issuance, repayment or conversion of the notes pursuant to the terms of the note purchase agreement and the notes; uncertainties related to the possibility that the transaction for the divestiture of certain assets in China (the "Transaction") will not occur as planned if events arise that result in the termination of the Equity and Assets Transfer Agreement, or if one or more of the various closing conditions to the Transaction are not satisfied or waived; the possibility that our plan with respect to our business operations after the consummation of the Transaction can be implemented successfully; our recurring operating losses have raised substantial doubt regarding our ability to continue as a going concern; the possibility that we may be delisted from trading on The Nasdaq Capital Market if we fail to satisfy applicable continued listing standards; the volatility in the market price of our ordinary shares; the risk of substantial dilution of existing shareholders in future share issuances; the difficulty of executing our business strategy on a global basis including China; our inability to enter into strategic partnerships for the development, commercialization, manufacturing and distribution of our proposed product candidates or future candidates; legal or regulatory developments in China that adversely affect our ability to operate in China; our lack of experience in manufacturing products and uncertainty about our resources and capabilities to do so on a clinical or commercial scale; risks relating to the commercialization, if any, of our products and proposed products (such as marketing, safety, regulatory, patent, product liability, supply, competition and other risks); our inability to predict when or if our product candidates will be approved for marketing by the U.S. Food and Drug Administration, European Medicines Agency, PRC National Medical Products Administration, or other regulatory authorities; our inability to receive approval for renewal of license of our existing products; the risks relating to the need for additional capital and the uncertainty of securing additional funding on favorable terms; the risks associated with our product candidates, and the risks associated with our other early-stage products under development; the risk that result in preclinical and clinical models are not necessarily indicative of clinical results; uncertainties relating to preclinical and clinical trials, including delays to the commencement of such trials; our ability to protect our intellectual property rights; the lack of success in the clinical development of any of our products; and our dependence on third parties; the risks related to our dependence on Juventas to conduct the clinical development of CNCT19 and to partner with us to co-market CNCT19; risks related to our dependence on Juventas to ensure the patent protection and prosecution for CNCT19; the risk related to the Company's ongoing development of and regulatory application for CID-103 with respect to the treatment of antibody-mediated rejection for organ transplant and the license arrangements of CID-103; risks relating to interests of our largest shareholder and our Chairman that differ from our other shareholders; risks related to the development of a new manufacturing facility by CASI Pharmaceuticals (Wuxi) Co., Ltd. and risks related to our disagreement with Acrotech with respect to the termination of agreements regarding EVOMELA^®. Further information regarding these and other risks is included in the Company's filings with the SEC. All information provided herein is as of the date of this announcement, and the Company undertakes no obligation to update any forward-looking statement, except as required under applicable law. We caution readers not to place undue reliance on any forward-looking statements contained herein.

EVOMELA^® is proprietary to Acrotech Biopharma Inc. and its affiliates. FOLOTYN^® is proprietary to Acrotech Biopharma Inc and its affiliates. The Company is currently involved in disputes and legal proceedings related to certain pipeline products, including EVOMELA^® and CNCT-19. Please refer to the Company's earlier SEC filing for further information.

COMPANY CONTACT:

Ingrid Choong, PhD
650-619-6115
ingridc@casipharmaceuticals.com

SOURCE: CASI Pharmaceuticals

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CASI Pharmaceuticals Announces Up to $20 Million Convertible Note Financing