90% (?) of the market has been cornered by you guess it, CHINA !
And they are not using zillions of limes,LEMONS,ETC.. to produce it if you get my point..
SO much now that the better organic producers of jams etc are NO LONGER using IT- IN LIEU THEY PUT ON THEIR BOTTLE "MADE FROM LEMONS JUICES ,ETC.."
Look up in WIKIPEDIA as to how citric acid is now made