Why Does Saudi Arabia Have So Many Immigrants?

Sources:
https://worldpopulationreview.com/country-rankings/immigration-by-country

https://www.johnmason.com/news/saudi-arabia/3-reasons-to-move-to-saudi-arabia/

https://www.cnn.com/2019/12/12/investing/saudi-aramco-2-trillion

https://companiesmarketcap.com/most-profitable-companies/

https://www.aramco.com/en/investors/investors/company-financial-summary

https://en.wikipedia.org/wiki/Demographics_of_Saudi_Arabia

https://www.expatica.com/sa/working/employment-law/average-salaries-and-minimum-wage-in-saudi-arabia-72042/

https://sa.talent.com/en/salary?job=laborer

https://www.hrw.org/report/2004/07/13/bad-dreams/exploitation-and-abuse-migrant-workers-saudi-arabia

https://www.replicon.com/regulation/saudi-arabia/

https://www.arabiangulflife.com/employer-violations-saudi-arabia-fines/

https://www.hrw.org/news/2021/03/25/saudi-arabia-labor-reforms-insufficient

https://www.globalpeoplestrategist.com/saudi-arabias-new-labor-reforms/

https://www.business-humanrights.org/en/latest-news/saudi-arabia-reforms-to-kafala-fall-short-as-african-workers-continue-to-face-discrimination-abuse-on-basis-of-race-gender-says-haaretz/

https://lifeinsaudiarabia.net/why-engineering-profession-is/

https://www.glassdoor.com/Salary/Saudi-Aramco-Petroleum-Engineer-Salaries-E7712_D_KO13,31.htm

https://www.payscale.com/research/IN/Job=Petroleum_Engineer/Salary

https://tradingeconomics.com/saudi-arabia/personal-income-tax-rate

https://www.argaam.com/en/article/articledetail/id/384622