Corporations must file tax returns in all U.S. jurisdictions imposing an income tax. Such returns are a self-assessment of tax. Corporate income tax is payable in advance installments, or estimated payments, at the federal level and for many states.
An ashen skin color is a result of inadequate oxygen circulation or perfusion.
The most common cause of grey hair is a lack of certain nutrients (a, b, copper, iron, zinc), so while green tea is one remedy (as it contains some of these nutrients), it's best to assess what your hair needs and address that directly.