Identification and Activities of the Company and Subsidiaries (Tables)

12 Months Ended

Dec. 31, 2021

Disclosure of Identification and Activities of the Company and Subsidiaries [Abstract]

Disclosure of information about employees [text block]

As of December 31, 2021, and 2020, the workforce was as follows:

	As of December 31, 2021						As of December 31, 2020
Employees	SQM S.A.		Other subsidiaries		Total		SQM S.A.		Other subsidiaries		Total
Executives		33		103		136		33		93		126
Professionals		117		1,639		1,756		108		1,696		1,804
Technicians and operators		275		3,914		4,189		267		3,310		3,577
Overall total		425		5,656		6,081		408		5,099		5,507

	As of December 31, 2021						As of December 31, 2020
Place of work	SQM S.A.		Other subsidiaries		Total		SQM S.A.		Other subsidiaries		Total
In Chile		425		5,246		5,671		408		4,672		5,080
Outside Chile		-		410		410		-		427		427
Overall total		425		5,656		6,081		408		5,099		5,507

Schedule of Shareholders stock and Ownership Percentage [Text Block]

The following information is derived from our registry and reports managed by the DCV and informed to the CMF and the Chilean Stock Exchange:

Shareholders as of December 31, 2021	No. of Series A		% of Series A shares			No. of Series B		% of Series B shares			% of total shares
The Bank of New York Mellon, ADRs		-		-			67,603,420		47.34	%		23.67	%
Inversiones TLC SpA (1)		62,556,568		43.80	%		-		-			21.90	%
Sociedad de Inversiones Pampa Calichera S.A. (2)		44,989,231		31.50	%		-		-			15.75	%
Potasios de Chile S.A.		18,179,147		12.73	%		-		-			6.36	%
Banco de Chile via State Street		23,428		0.02	%		9,178,379		6.43	%		3.22	%
Banco Santander via foreign investor accounts		-		-			8,856,091		6.20	%		3.10	%
Inv. Global Mining (Chile) Ltda.		8,798,539		6.16	%		-		-			3.08	%
Banco de Chile non-resident third party accounts		445		-			7,939,865		5.56	%		2.78	%
Banco de Chile via Citi NA New York Clients		67,463		0.05	%		4,795,310		3.36	%		1.70	%
Inversiones la Esperanza de Chile Limitada		4,246,226		2.97	%		-		-			1.49	%
Larraín Vial S.A. Corredora de Bolsa		125,726		0.09	%		3,653,614		2.56	%		1.32	%
AFP Habitat S.A. for Pension Fund C		-		-			2,914,292		2.04	%		1.02	%

Shareholders as of December 31, 2020	No. of Series A		% of Series A shares			No. of Series B		% of Series B shares			% of total shares
Inversiones TLC SpA (1)		62,556,568		43.80	%		-		-			23.77	%
The Bank of New York Mellon, ADRs		-		-			50,792,452		42.19	%		19.30	%
Sociedad de Inversiones Pampa Calichera S.A. (2)		44,894,152		31.43	%		922,971		0.77	%		17.41	%
Potasios de Chile S.A.		18,179,147		12.73	%		-		-			6.91	%
Inversiones Global Mining (Chile) Limitada		8,798,539		6.16	%		-		-			3.34	%
Euroamerica C de B S. A.		1,418		-			8,788,517		7.30	%		3.34	%
Banco Santander via foreign investor accounts		-		-			7,294,827		6.06	%		2.77	%
Banco de Chile via State Street		-		-			6,971,782		5.79	%		2.65	%
Banco de Chile non-resident third party accounts		-		-			6,129,339		5.09	%		2.33	%
Inversiones la Esperanza de Chile Limitada		4,147,263		2.90	%		46,500		0.04	%		1.59	%
Banchile Corredora de Bolsa S. A.		459,202		0.32	%		2,426,758		2.02	%		1.10	%
Banco de Chile on behalf of Citibank NA New York customers		177,463		0.12	%		1,732,249		1.44	%		0.73	%