The Chinese government has facilitated the mass transfer of Uyghur and other ethnic minority citizens from the far west region of Xinjiang to factories across the country. Under conditions that strongly suggest forced labour, Uyghurs are working in factories that are in the supply chains of at least 83 well-known global brands in the technology, clothing and automotive sectors, including brands owned by this company. The Australian Strategic Policy Institute's 2020 report estimates (somewhat conservatively) that more than 80,000 Uyghurs were transferred out of Xinjiang to work in factories across China between 2017 and 2019, and some of them were sent directly from detention camps.

The Green Supply Chain Corporate Information Transparency Index (CITI) evaluates consumer-facing companies that have a sizeable supply chain in China. The evaluation uses government supervision data and public information to assess the environmental management of their supply chains in China. This company received a score of 29.76/100 (retrieved 24 Nov 2023).

In 2023, the Carbon Disclosure Project (CDP) asked companies to provide data about their efforts to manage and govern freshwater resources. Responding companies are scored on six key metrics: transparency; governance & strategy; measuring & monitoring; risk assessment; targets & goals; and value chain engagement. This company received a CDP Water Security score of D.

A 2023 report by China Labor Watch investigated labour conditions in China's consumer electronics sector using three stages of research: analysis of social media posts, case studies through online research, and in-person factory investigation. Labour abuses in factories supplying this company were identified in multiple social media posts. Labour abuses include excessive working hours, illegal use of student interns, wage theft and wage arrear, high labour intensity, workplace bullying and verbal abuse, deception, and sexual harassment.

In 2022 India's finance ministry, said that Oppo's India unit evaded customs duty of $550 million. The finance ministry said it found evidence that Oppo India "wilfully" wrongly declared description of certain items it imported in the nation, which allowed it to improperly avail duty exemption benefits of $374.3 million. Additionally, Oppo India also made royalty and licence fee payments of more than $176 million to other companies, including some in China, and did not disclose those transactions in the value of goods imported by them, violating the country's Section 14 of the Customs Act, 1962, the ministry added.