Anniversary, also known as Oil City, is a prefecture-level city under the jurisdiction of Heilongjiang Province, an important national oil production and petrochemical industrial base approved by the State Council, and an important regional central city in western Heilongjiang. By the end of 2002 1, Daqing had five districts and three counties1autonomous county, with a total area of 2 1 10,000 square kilometers and a permanent population of 2.747 million.
Heihe River, formerly known as Aihui, is a prefecture-level city under the jurisdiction of Heilongjiang Province. City * * * governs 1 municipal district, with 2 counties and 3 county-level cities, with a total area of 68,726 square kilometers. According to the data of the seventh population census, as of 0: 00 1 1 on June 2020, the permanent population of Heihe City was 128640 1. Heihe river has a long history. According to archaeological evidence, as early as the Paleolithic, there were human activities here, which formed the foundation of the local ancient indigenous peoples. 1982, with the approval of the State Council, the national first-class port was restored.