Zetwerk, Tonbo Imaging secure Sebi nod for IPOs

Contract manufacturing platform Zetwerk and defence imaging company Tonbo Imaging have received Sebi approval to launch their public offerings. Zetwerk, which filed its papers confidentially in March 2026, has an 18-month window to go public, while Tonbo Imaging, which filed in December 2025, must list within 12 months through an offer-for-sale of up to 18.1 million equity shares. JM Financial and IIFL Capital Services are the book-running lead managers for Tonbo Imaging's issue.