X0202 SCHEDULE 13G 0001837343 XXXXXXXX LIVE Ordinary Shares 06/30/2026 0002107018 DPC Holdings PLC G2R11M108 Donington Court, Pegasus Business Park Herald Way, 2nd Floor Derby X0 DE742UZ Rule 13d-1(d) Hill City Capital Master Fund LP E9 0 7693605 0 7693605 7693605 N 5.1 PN Hill City Capital GP LLC DE 0 7693605 0 7693605 7693605 N 5.1 OO Hill City Capital LP DE 0 7693605 0 7693605 7693605 N 5.1 PN IA Hill City GP LLC DE 0 7693605 0 7693605 7693605 N 5.1 OO Herbert Frazier X1 0 7693605 0 7693605 7693605 N 5.1 IN DPC Holdings PLC DONINGTON COURT, 2ND FLOOR, PEGASUS BUSINESS PARK, HERALD WAY, DERBY, United Kingdom, DE742UZ This Schedule 13G is being filed by Hill City Capital Master Fund LP (the "Fund"); Hill City Capital GP LLC (the "General Partner"), which serves as the general partner of the Fund; Hill City Capital LP (the "Investment Manager"), which serves as investment manager of the Fund; Hill City GP LLC (the "Investment Manager GP"), which serves as the general partner of the Investment Manager; and Herbert Frazier, who serves as managing member of the General Partner and the Investment Manager GP (each of whom may be referred to herein as a "Reporting Person" and collectively as the "Reporting Persons"). The Reporting Persons are making this single, joint filing, and the agreement among the Reporting Persons to file jointly is attached hereto as Exhibit 1. The principal business address of the Fund is c/o Ogier Global (Cayman) Limited, 89 Nexus Way, Camana Bay, Grand Cayman KY1-9009. The principal business address of the General Partner, the Investment Manager, the Investment Manager GP and Mr. Frazier is 121 High St, 3rd Floor, Boston, Massachusetts 02110. The Fund is a Cayman Islands exempted limited partnership; each of the General Partner and the Investment Manager GP is a Delaware limited liability company; the Investment Manager is a Delaware limited partnership; and Mr. Frazier is a citizen of the United States. Y See Item 9 of each cover page. See Item 11 of each cover page, which is based on 149,393,016 ordinary shares outstanding as of July 28, 2026, as reported in the Issuer's Quarterly Report on Form 10-Q for the quarterly period ended June 28, 2026 and filed with the Securities and Exchange Commission on August 11, 2026. See Item 5 of each cover page. See Item 6 of each cover page. See Item 7 of each cover page. See Item 8 of each cover page. Y Y Y Y Y Y Hill City Capital Master Fund LP /s/ Herbert Frazier 08/11/2026 Hill City Capital GP LLC /s/ Herbert Frazier 08/11/2026 Hill City Capital LP /s/ Herbert Frazier 08/11/2026 Hill City GP LLC /s/ Herbert Frazier 08/11/2026 Herbert Frazier /s/ Herbert Frazier 08/11/2026