Positive Net Foreign Exchange obligation governs exemptions and triggers reporting, recovery and penal consequences for non compliance. Agreement binds EOU/EHTP/STP/BTP units to achieve and maintain positive Net Foreign Exchange (NFE), submit prescribed quarterly and annual reports certified as required, notify key changes promptly, and comply with restrictions on DTA sales. Entitlement to duty/GST exemptions is conditional on scheme provisions; non compliance permits withdrawal of permissions, recovery of duties/GST/cess/interest under statutory recovery provisions, and penal action under the Foreign Trade (D&R) Act.