| Obligations related to employee termination benefits and pension commitments |
Obligations towards the Company’s employees comply with the provisions of the collective bargaining agreements in force, which are formalized through collective employment agreements and individual employment contracts, except for the United States, which is regulated in accordance with employment plans in force up to 2002. (See more details in Note 15.4)
These obligations are valued using actuarial calculations, according to the projected unit credit method which considers such assumptions as the mortality rate, employee turnover, interest rates, retirement dates, effects related to increases in employees’ salaries, as well as the effects on variations in services derived from variations in the inflation rate. The criteria in force contained in the revised IAS 19 are also taken into account.
Actuarial gains and losses that may be generated by variations in defined, pre-established obligations are directly recorded in other comprehensive income.
Actuarial losses and gains have their origin in departures between the estimate and the actual behavior of actuarial assumptions or in the reformulation of established actuarial assumptions.
The discount rate used by the Company for calculating the obligation was
5.111
% and
4.522
% for the periods ended December 31, 2017 and December 31, 2016, respectively.
The Company’s subsidiary SQM North America has established pension plans for its retired employees that are calculated by measuring the projected obligation using a net salary progressive rate net of adjustments for inflation, mortality and turnover assumptions, deducting the resulting amounts at present value using a
3.75
% interest rate for 2017 and
4.5
% for 2016. The net balance of this obligation is presented under the non-current provisions for employee benefits (refer to Note 15.4).