This document is a tax form for corporate annual income tax return for a taxpayer permitted to maintain accounts in US dollars. It includes: 1) A list of related parties with their names, addresses, tax identification numbers, business activities, and relationship to the taxpayer. 2) Details of transactions with related parties including names, types of transactions, transaction values, and the price determination methods used. 3) The taxpayer or authorized representative must sign the form, and additional pages can be added if needed. If the form is inadequate, an additional 3B file can be used.