Group 1: Project Overview - The company plans to equip the Guinea transshipment project with deck barges, tugboats, oil barges, floating cranes, and maintenance vessels [2] - The average gross profit margin for the project in its full production year (T+5 years) is estimated to be 39.40%, based on previous disclosures [2] Group 2: Contractual Details - The cooperation period for the Guinea bauxite transshipment agreement is set for 5+5 years, with a trial operation period of 90 days before the official start [3] - The decision to renew the second 5-year operational period must be made by the client 180 days before the end of the first 5-year period [3]