Complex sentence: Immigration facilities were established in 1925, and the port was officially opened for foreign trade by the Home Ministry (Japan) in 1928, and was designated a primary seaport by the Japanese government in 1954.
Split into simpler sentences: Immigration facilities were established in 1925, and the port was officially opened for foreign trade by the Home Ministry in 1928. It was designated a primary seaport by the Japanese government in 1954.