Patricio de Solminihac Tampier
Analyst
Thank you. Good morning, and thank you for joining SQM's first quarter 2018 earnings conference call. Last night, we post our results for the first 3 months of the year. Our net income reached $114 million, an increase of over 10% when compared to the same period of last year. Our strong results were led by higher prices across all our business lines, which offset lower sales volume in all business lines except potassium nitrate.
To highlight a few, iodine price increased compared to last year, reaching $23 per kilo. And average lithium price exceeding expectation surpassed $16.4 per kilo. Over the past 2 years, we have been selling more lithium than our nameplate capacity, pressuring our production and logistics, thus reducing inventories. As a result of this, we reported lower sales volume of lithium during the first quarter. This lower sales volume will not impact our 2018 expectation of approximately 55,000 metric tons, about 10% higher than the amount reported last year.
The price pressure in the lithium market is a result of growing demand, which is expected to reach almost 260,000 metric tons this year, a 20% increase over last year. Given this and long-term lithium expectation, we announce plans to increase our lithium production in Chile from 48,000 metric ton per year, our current capacity, to 180,000 metric ton per year. This capacity is planned in 3 stages, with a total CapEx of approximately $525 million.
In the past, the market has consistently underestimated lithium demand growth, and the industry has failed to grow supply accordingly. We have been a major player in the lithium market for over 20 years, and as always, remain very diligent in assessing the market and its needs. Our production and development teams have been able to expand lithium capacity in the past in a very efficient way. By executing this plan, we will have the capacity and flexibility to respond to market growth. The low CapEx per ton and our very strong financial position make this an attractive investment.
In the nitrate market, we are on track to reach 1.5 million tons of capacity this year. We expect to process about 10% to 15% more caliche ore this year in Nueva Victoria as part of this major project. As the largest player in this market, about 50% market share, we will work to have the permit and engineering ready for further expand our capacity if market demands it.
There are a lot of exciting things happening at SQM, and I look forward to working hard to maximize long-term value for all our stakeholders.
I thank you for joining the call today, and we'll now open the line for questions.