X0306 4 2021-05-14 0 0001843121 Magnum Opus Acquisition Ltd OPA 0001842825 Magnum Opus Holdings LLC 15TH FLOOR, NEXXUS BUILDING, 77 DES VOEUX ROAD HONG KONG 1 0 1 1 Director by Deputization 0001842862 Lin Hou Pu Jonathan 15TH FLOOR, NEXXUS BUILDING, 77 DES VOEUX ROAD HONG KONG 1 0 1 1 Director by Deputization Class B Ordinary Shares, par value 2021-05-14 4 D 0 750000 0.00 D Class A Ordinary Shares 750000 3750000 D This form is being filed by the following reporting persons: Magnum Opus Holdings LLC (the "Sponsor") and Hou Pu Jonathan Lin (and together with the Sponsor, the "Reporting Persons"). Because of the relationships among the Reporting Persons described in footnote 4, the Reporting Persons may be deemed to beneficially own the securities reported herein to the extent of their respective pecuniary interests. Each Reporting Person disclaims beneficial ownership of the securities reported herein, except to the extent of such Reporting Person's pecuniary interest therein, if any. The Class B ordinary shares, par value $0.0001 per share (the "Class B Shares") of Magnum Opus Acquisition Limited (the "Issuer") have no expiration date and are convertible into shares of Class A ordinary shares, par value $0.0001 per share of the Issuer, as described under the heading "Description of Securities" in the Issuer's registration statement on Form S-1 (File No. 333-253688). The Sponsor forfeited 750,000 Class B Shares to the Issuer for no consideration, which was exempted pursuant to Rule 16b-3(e) under the Securities Exchange Act of 1934, as amended, in connection with the underwriters' election to not exercise their overallotment option on May 8, 2021. Hou Pu Jonathan Lin is the manager of the Sponsor and thus may be deemed to beneficially own the Class B Shares owned by the Sponsor. Pursuant to Rule 16a-1(a)(4) under the Exchange Act, this filing shall not be deemed an admission that the Reporting Persons are, for purposes of Section 16 of the Exchange Act or otherwise, the beneficial owners of any equity securities in excess of their respective pecuniary interests. Mr. Lin serves as Chief Executive Officer of the board of directors of the Issuer. The Sponsor may be deemed a director by deputization as a result of the service of Mr. Lin. /s/ Hou Pu Jonathan Lin, Authorized Signatory for Magnum Opus Holdings LLC 2021-05-20 /s/ Hou Pu Jonathan Lin 2021-05-20