@elleystar
The PCA registration requirement only applies to Philippine-made coco palm sugars. I do not know if Indonesia has any similar agency or certification requirement. Aside from the PCA, Philippine producers will also have to comply with food processing requirements of BFAD (this is the local equivalent of the FDA of the US.)
I assume (and hopefully, I"m right) that food laws in other countries
strictly prohibit mis-labeling of products, and they cannot claim the products being market as "coconut palm sugar" are made from sap other than the flowers of the coconut tree.
As far as I know, "gula jawa/ gula aren/ gula merah" the traditional palm sugars of Indonesia and Bali are often made from the Borassus palm tree and other palm trees but make no distinctions between them.
This cookbook
guide writes: "Gula Jawa (Coconut Sugar) is made from the Borassus (Palmyra palm) and is used in Javanese cuisine. One can substitute either brown sugar (preferred substitution) or white sugar for Gula Jawa."
I sure will not agree to calling "coconut sugar" as coconut sugar when it comes from the Palmyra tree. Palm sugar is a generic name but coconut sugar is a specific kind of palm sugar - that is from the coconut tree (cocos nuciferas)
@amcal
In the absence of any certification process, consumers will have to rely on what producers claim.
@joyMC
What's "reasonable", anyway?

I've asked this before in another forum but never got an answer back: Why are people not complaining about the price of maple sugar?
Palm sugars (including coco palm sugar) are not as expensive as maple sugars but could stand on its own on flavor alone. No sugarcane-based sweetener can claim the same.
The other health benefits of coco palm sugar (low glycemic, unrefined and naturally-rich in vitamins and minerals) are added bonuses.