Complex sentence: The employees also continue to live by its principles under the initiative of the current General Manager, who makes sure that his management style both reflects these principles and that his employees are also working in an environment that allows them to simultaneously have fun and be productive.
Split into simpler sentences: The employees also continue to live by its principles under the initiative of the current General Manager. Who makes sure that his management style both reflects these principles and that his employees are also working in an environment that allows them to simultaneously have fun and be productive.