Safety data sheet

Hello,

I am new to SC and I am kindly requesting your advice and guidance please. My product is Essential Oil and I have been asked to provide a Safety Data Sheet. I have asked my chinese manufacturer to send me one. Is there any guideline as to what exactly needs to be mentioned in the SDS please? I just thought it will be easier for my Chinese supplier to create one (if they do not have one) if i give them the details. Any weblink you may please suggest. Many thanks