A strong euro against major currencies also made its cognac and other liquors more expensive on global markets, with higher production costs weighing on profit margins.
The group has struggled in recent years against US President Donald Trump's tariffs and China's retaliatory levies on cognac imports, though the European Union and Beijing buried the hatchet on the trade dispute last year.
But the company's shares jumped in opening deals on the Paris stock exchange, with the results surpassing the consensus forecasts of analysts polled by Bloomberg.
Chief executive Franck Marilly said in a statement that "we have won several key battles" in what he called "a persistently complex macroeconomic and geopolitical environment".
At around 9:45 am the shares were trading up around 12 percent at 42.12 euros.
"Our brands are regaining ground in the United States, Remy Martin is strengthening its leadership and market share in China, and our Travel Retail business is gradually recovering, with the aim of doubling in size within three years," he said in a statement, referring to duty-free sales at airports.
Net profit fell to 78.7 million euros in its financial year to end-March from 121.2 million the year previous, on sales that fell five percent to 935.3 million euros.
That saw its current operating profit margin fall to 17.7 percent from 22 percent, though the company forecast a "slight" improvement in the margin for the current year, even though it still expects US and Chinese tariffs and the strong euro to weigh on the bottom line.
Remy also halved its dividend, saying it will propose a payout of 75 euro cents a share at its shareholders' meeting in July.
"In 2026-27, Remy Cointreau anticipates a return to sustainable organic sales growth, with momentum expected to strengthen progressively over the year," the company said.
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