STOCKHOLDERS' EQUITY (Tables)

6 Months Ended

Jun. 30, 2022

Share based Compensation Plan

Schedule of activity in treasury stock

Activity in treasury stock in the six-month period ended March 31, 2022 and 2021 is as follows (in millions):

	2022		2021
Southern Copper common shares
Balance as of January 1,	$	2,767.2	$	2,767.5
Used for corporate purposes		(0.1)		(0.1)
Balance as of June 30,		2,767.1		2,767.4
Parent Company (Grupo Mexico) common shares
Balance as of January 1,		306.8		296.0
Other activity, including dividend, interest and foreign currency transaction effect		17.6		12.4
Balance as of June 30,		324.4		308.4
Treasury stock balance as of June 30,	$	3,091.5	$	3,075.8

Schedule of activity in Directors' Stock Award Plan

	2022	2021
Total SCC shares reserved for the plan	600,000	600,000
Total shares granted at January 1,	(405,200)	(391,600)
Granted in the period	(5,600)	(8,000)
Total shares granted at June 30,	(410,800)	(399,600)
Remaining shares reserved	189,200	200,400

Summary of non-controlling interest activity

The following table presents the non-controlling interest activity for the six months ended June 30, 2022 and 2021 (in millions):

	2022		2021
Balance as of January 1,	$	58.6	$	51.2
Net earnings		5.0		7.0
Dividend paid		(3.8)		(2.9)
Balance as of June 30,	$	59.8	$	55.3

Employee Stock Purchase 2015 Plan

Share based Compensation Plan

Schedule of stock based compensation expense and unrecognized compensation expense

The stock based compensation expense for the first six months of 2022 and 2021 and the unrecognized compensation expense under this plan were as follows (in millions):

	2022		2021
Stock based compensation expense	$	0.3	$	0.3
Unrecognized compensation expense	$	0.5	$	1.1

Schedule of stock award activity

		Unit Weighted Average
	Shares	Grant Date Fair Value
Outstanding shares at January 1, 2022	867,234	$	2.63
Granted	—		—
Exercised	(16,394)	$	2.63
Forfeited	—		—
Outstanding shares at June 30, 2022	850,840	$	2.63
Outstanding shares at January 1, 2021	1,264,410	$	2.63
Granted	—		—
Exercised	(370,959)	$	2.63
Forfeited	—		—
Outstanding shares at June 30, 2021	893,451	$	2.63

Employee Stock Purchase 2018 Plan

Share based Compensation Plan

Schedule of stock based compensation expense and unrecognized compensation expense

The stock based compensation expense for the six months ended June 30, 2022 and 2021 and the unrecognized compensation expense under this plan were as follows (in millions):

	2022		2021
Stock based compensation expense	$	0.3	$	0.3
Unrecognized compensation expense	$	3.0	$	3.6

Schedule of stock award activity

			Unit Weighted Average
	Shares		Grant Date Fair Value
Outstanding shares at January 1, 2022	3,173,924	$	1.86
Granted	—		—
Exercised	(160,236)	$	1.86
Forfeited	—		—
Outstanding shares at June 30, 2022	3,013,688	$	1.86
Outstanding shares at January 1, 2021	3,918,458	$	1.86
Granted	—		—
Exercised	(625,742)		1.86
Forfeited	—		—
Outstanding shares at June 30, 2021	3,292,716	$	1.86