This document discusses borrowing powers under company law. It notes that trading companies have an implied power to borrow, while non-trading companies must be expressly authorized to borrow in their memorandum and articles of association. It also discusses unauthorized or "ultra vires" borrowings, noting that borrowings beyond a company's authorized amount are void, though lenders may have remedies against directors or seek to recover funds. Examples of cases related to ultra vires borrowings are provided. Finally, it briefly outlines different types of borrowings and forms of security that can be provided for borrowings.