The answer to your question depends on whether there is a legally mandated national research ethics framework in place in the country in question. Usually, where there there are national research ethics laws in place, all research must then comply with such laws and ethics guidance, whether the labs are independent or not (see e.g. http://www.nhrec.org.za/). In some countries the national ethics guidelines only apply to government-funded research, meaning that private research is exempt from such guidelines, which is an unsatisfactory situation. I am not a lab expert but I imagine that the answer also depends on whether these labs work with human biological specimens, or organisms that impact on human health. In either scenario, monitoring and compliance are important (see https://www.home.nla.org.za/)