On August 16, 1971, China established diplomatic relations with Iran, the capital of Tehran, Iran, which is known as the Islamic Republic of Iran, meaning ¡°light¡±. located in West Asia. The area of 164.5 million square kilometers. The population of 6672.7 million (1995), the Persians accounted for 66%, Azerbaijan accounted for 25% of foreign exchange income. The official language is Persian. Islam is the state religion. The capital of Tehran. The oil and natural gas deposits are in the forefront of the world, and there are copper, zinc, heavy crystal, lead, etc. The agriculture is behind. Oil mining is its economic hub, oil revenue represents 66%, Azerbaijan accounts for 25% of foreign exchange income. In addition, textile, steel, manufacturing, paper, metallurgy, automotive and other industries.