Donsco Incorporated

Donsco Incorporated

Donsco Incorporated traces its origin to 1906, when H.K. Smith founded the Riverside Foundry in Wrightsville, Pennsylvania. The Mann family later acquired and expanded the business into a multi-site metalcasting operation under the Donsco name, with Arthur K. Mann, Sr. leading the firm through much of the twentieth century. Today, the company operates as a privately held asset owner structured around a pension fund — an unusual architecture for an industrial family enterprise — with Arthur Mann, Jr. serving as President and CEO. The firm deploys growth capital across its three Pennsylvania foundries: the original Riverside Foundry campus on North Front Street in Wrightsville, the Mount Joy Foundry on South Barbara Street in Lancaster County, and the Belleville Foundry further west. These facilities produce metal castings for industrial customers, representing a vertically integrated manufacturing model where the pension assets remain tied directly to operating subsidiaries. Beyond metalcasting, Donsco holds a portfolio of riverfront land in Wrightsville and spent foundry sand disposal rights in Lancaster County — environmental assets that carry both operational and potential development value. Donsco's professional reach extends through deep civic and industry affiliations rather than a traditional institutional investment team. Art Mann, Sr. founded and chairs the Hourglass Foundation, a Wrightsville civic organization, while the Mann Family Foundation operates as a separate philanthropic vehicle. The Mann family also holds a long-standing relationship with the Lancaster Chamber of Commerce and Industry. Arthur Mann, Jr. served on the Wrightsville Borough Riverfront Park Study Committee, positioning the firm at the center of local land-use decisions that affect Donsco's real estate holdings. The firm is structurally distinct from conventional pension funds: its assets consist of operating industrial companies and real property rather than a diversified portfolio of securities. This makes Donsco an integrated operator-pension hybrid — the foundries generate revenue, employ workers covered by the pension plan, and constitute the plan's principal assets. The architecture ties retirement obligations directly to the ongoing viability of Pennsylvania metalcasting operations, a structure that aligns management incentives with long-term industrial survival rather than quarterly portfolio returns.