Will the buyer of goods from unregistered person pay reverse tax

A registered person receiving taxable goods or services from a supplier who is not registered, would be liable to pay GST under reverse charge mechanism.
However, in terms of notification no. 8/2017-Central Tax (rate) dated 28th June, 2017, aggregate value of supplies of goods and/or service received by a registered person from any or all the suppliers, who is or are not registered,
upto five thousand rupees in a day is exempt from tax under reverse charge mechanism. This exemption will not apply if the value exceeds Rs.5000/-.

(FAQ 12: MINING)

What is aggregate turnover

As per section 2(6) of the CGST Act, 2017, “aggregate turnover” means the aggregate value of all taxable supplies (excluding the value of inward supplies
on which tax is payable by a person on reverse charge basis), exempt supplies, exports of goods or services or both and inter-State supplies of persons having the same Permanent Account Number, to be computed on all India basis but excludes Central tax, State tax, Union territory tax, integrated tax and compensation cess.

(FAQ 11: MINING)

Will the basic exemption limit from GST be applicable to the tiny & micro segment in mining?

Yes, the basic exemption limit of Rs. 20 lakhs (Rs.10 lakhs in the case of special category States) is applicable to the tiny and micro segment even in mining. However, a person engaged in making taxable supply and
having aggregate annual turnover (more than Rs.20 lakhs in any State other than the special category States) would be liable to obtain registration under GST. The return has to be filed on monthly basis by regular taxable persons
and on quarterly basis by the taxable persons registered under the composition scheme.

(FAQ 10; MINING)

What is the threshold limit and conditions when a small mine owner/lease holder under Composition Scheme has to migrate into full GST System

As per section 10(3) of the CGST Act, 2017, the option availed of by the small mine owner/lease holder shall lapse with effect from the day on which his
aggregate turnover during a financial year exceeds Rs. 75 Lakhs. For details regarding other conditions, section 10 of the CGST Act, 2017 and the rules framed there under may be referred to.

(FAQ 8: MINING)