The business, which operates fish farms from Argyll to the Hebrides, increased sales to £23.7 million in the three months to June compared with £17.5m in the same period last year.
Earnings before interest, tax and biomass adjustment for the value of closing fish stock increased to £3.8m from £0.3m last time. The company's chief executive, Stewart McLelland, said the outook for the global salmon industry is bright with demand rising faster than supply.
He said: "This has led to a significant boost to sales in Q2 and allowed us to renegotiate around half of our contracted salmon to take advantage of the price rises."
The Oslo-listed company is increasing its production capacity to capitalise on the strong market. It is hiring around 25 staff to work on a gutting line it plans to reopen in Stornaway in the autumn.
The company developed a new site and extended an existing facility site at Loch Striven in the second quarter, for an outlay of £1.6m.
Mr McLelland said the biological development of current stock is good and performing normally. But he added: "Against this positive backdrop we must expect higher production costs in the second half of 2013 because of historic issues with amoebic gill disease (AGD)."
In its accounts for last year, Scottish Salmon Company said unseasonable weather conditions in the Highlands in 2012 led to an unprecedented rise in the incidence of AGD.
The company said there have been no new cases of AGD this summer at its sites.
First-half revenues increased to £42.5m from £30.2m. The company made £5.6m EBIT before biomass adjustment after losing £0.1m in the first half last year. It said it expects to harvest 21,000 tonnes of salmon in 2013.