The Stoneham Chamber of Commerce Town Day Committee, led by chamber director Ralph Barile Jr., is seeking sponsors and exhibitors for the 30th annual Stoneham Town Day, scheduled for Sept. 7 with a rain date of Sept. 8. Those wishing to exhibit at Town Day are encouraged to submit a reservation form, with corresponding payment, as quickly as possible. Town Day space is available to chamber members, businesses, and nonprofit organizations based in Stoneham, and to human and social service agencies that serve the town. According to the chamber’s executive director, Jennifer Welter, exhibit spaces are selling very quickly this year. Reservation forms are available at the Chamber of Commerce office, 271 Main St., or online at www.stonehamchamber.org. To request a form by e-mail, send an inquiry to firstname.lastname@example.org. Sponsorship opportunities also are available. Contact the chamber office at 781-438-0001 for more information.