Ferrero

A 2017 investigation by Mighty Earth, "Chocolate's Dark Secret," found that a large amount of the cocoa used in chocolate produced by major chocolate companies, including this one, is grown illegally in national parks and other protected areas in Ivory Coast and Ghana. The countries are the world's two largest cocoa producers. The report documents how in several national parks and other protected areas, 90% or more of the land mass has been converted to cocoa. Less than four percent of Ivory Coast remains densely forested.
Source: Mighty Earth (2017)

In 2019 Break Free From Plastic engaged 72,541 volunteers in 51 countries to conduct 484 brand audits. These volunteers collected 476,423 pieces of plastic waste, 43% of which was marked with a clear consumer brand. While not in the global top 10, this company ranked as South America's third worst plastic polluter.
Source: #breakfreefromplastic (2019)