This is what trade tariffs should be used for -- to level the playing field to prevent the global arbitrage of labor based on unfair or shady practices.
If the DRC is going to allow (or ignore) child labor for Cobalt mining, then there should be tariffs that would make it so expensive that it would make Australian or Canadian Cobalt mines profitable (where we know the workers are fairly compensated and can work in safe environments).
If India is going to look the other way for poor labor practices in ship breaking then there should be a big tariff on the recycled steel that drives that industry. Making properly managed, safe ship breaking in well regulated countries competitive.
If China wants to allow heavy industrial production with no environmental protections, then there should be tariffs on that to make countries that do regulate industrial pollution competitive.
When these countries finally clean up their labor practices and make things safe and equitable for their workers and the environment, then the tariffs go away.
Companies should NOT be able to exploit repression, bullying unsafe practices, child labor or pollution by proxy etc. in order to reduce their costs by moving production to such a country. Trade tariffs, when wielded honestly and effectively should be a tool to prevent that.