You're not going to be able to buy "a share" of GECO if that's what you are looking for because there is no "market" for GECO shares as it isn't a publicly traded company.
However, if you are serious about investing a large quantity of money into GECO to fund operations, raw materials, whatever is needed then contact me and I will see what we can work out. Of course, I have no say or authority when it comes to GECO but I could probably facilitate a telephonic meeting between a serious accredited investor and our CEO. Non-accredited investors need not apply.