The U.S. and China dominate in world salt production, combining for 40% of the world’s quarter billion tons of salt produced each year.

Salt producers use three basic technologies to create salt for its myriad uses. Now-buried dried-up oceans of geologic ages past have left many areas, under both land and sea, with concentrated salt sedimentary layers which can exceed fifty feet in thickness. Two technologies exploit these underground deposits: conventional shaft mining where miners go underground to remove solid rock salt and solution mining where water is pumped underground dissolving the solid salt and then pumping out the salty brine which is de-watered to crystallize the salt. The third method extracts salt from oceans and saline lakes, growing salt crystals much as a farmer grows crops of vegetables or grain. Respectively, the products of these technologies are known as rock salt, evaporated salt (or vacuum pan salt) and solar (or sea) salt. (Google-source)

There are lots of such artificial sea salt being sold globally.  One of such product is Instant ocean which is used to prepare sea water for aquarium purposes. The cost may be around 2,599 INR for 8Kg. However, you may check the exact cost from the company site.

Sourish, Thanks for responding to my query. I would like to know if there is any published report outlining the world trade for this product. Certainly, as you suggested one can find the production, costing from individual source, but I want to know the global demand - supply picture.  

Hello: Check this article: Michael W. Henson et al. (2016) "Artificial seawater media facilitate cultivating members of the microbial majority from the Gulf of Mexico"  mSphere, Vol. 1, #2, pages 1-10. This journal can be found at msphere.asm.org.

Dear sir

I found two articles related your query, you might have seen it already but still i am sending it..

With regard,

Perumal

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