Countries mentioned with the biggest partner first in order and the smallest partner last in order.
Saudi-Arabia export: China 13.6%, Japan 11.3%, India 10.7%, US 9.8%, South Korea 9.1%, Singapore 4.7% (2016)
Saudi-Arabia import: China 16.2%, US 15.0%, Germany 6.3%, Japan 5.3%,
UAE 5.0%, South Korea 4.3% (2016)
Iran export: China 30.1%, India 16.7%, South Korea 9.7%, Turkey 9.5%, Japan 6.8% (2016)
Iran import: UAE 27.4%, China 13.2%, Turkey 7.8%, South Korea 4.3%,
Germany 4.0% (2016)
Iraq export: China 25.4%, India 17.3%, US 14.3%, South Korea 12.0%, Italy 6.5%, Greece 6.1% (2016)
Iraq import: China 23.5%, Turkey 23.0%, Iran 20.0%, South Korea 5.0%,
US 4.0% (2016)
Kuwait export: South Korea 16.8%, China 14.4%, Japan 9.6%, India 9.2%, US 7.5%, Singapore 5.6% (2016)
Kuwait import: China 14.1%, US 11.9%, UAE 8.3%, Japan 6.5%,
Germany 6.2%, India 5.4%, Italy 5.0%, Saudi-Arabia 4.4%, South Korea 4.4%
(2016)
Qatar export: Japan 20.0%, South Korea 15.5%, India 13.1%, China 8.2%, UAE 5.5%, Singapore 5.3% (2016)
Qatar import: US 13.7%, Germany 9.8%, UAE 9.2%, China 8.6%, Japan 7.2%,
UK 5.5%, Saudi-Arabia 4.6%, Italy 4.4% (2016)
United Arab Emirates export: India 9.9%, Iran 8.9%, Japan 8.8%, Switzerland 8.5%, Oman 5.4%, China 5.1% (2016)
United Arab Emirates import: China 7.4%, US 6.9%, India 6.8%,
Germany 4.4% (2016)
Bahrain export: Saudi-Arabia 18.3%, UAE 17.5%, US 11.1%, Japan 8.7%, Qatar 4.8%, China 4.2% (2016) Bahrain exports no oil but they export a lot of refined Kerosene used for aircraft propulsion.
Bahrain import: China 9.7%, US 8.6%, UAE 7.4%,
Japan 6.1%, Saudi-Arabia 5.5% (2016) Bahrain is a
net importer of crude oil.
As you can see for yourself, China is up there as a trading partner with the countries in the Persian Gulf and is a bigger partner than the US is in most cases.
Source; CIA WORLD FACTBOOK 2018-2019
Homework:
What do you think the implications on the nations around the Persian Gulf are now that China is trading so closely with both Sunni-muslim Saudi-Arabia and Shia-muslim Iran? Does it have a stabilizing effect in the sense that China acts as a mediator between Iran and Saudi Arabia, and that the Chinese can prevent the Iranians from knocking out most of the Saudis’ oil facilities?
For this task please remember that the United States has an oil and commodity embargo on Iran, which China ignores most of the time. China is also the main trading partner for Shia-dominated Iraq by 64-69% Shia-Iraqis against 29-34% Sunni-Iraqis.
And please note that the US also are one of the major trading partners for Saudi-Arabia and Iraq in that order, but the US doesn’t trade with Iran.
Roger M. Klang, defense political spokesman for the Christian Values Party (Kristna Värdepartiet) in Sweden