SHANGHAI — Since her father was elected president of the United States, global sales of Ivanka Trump merchandise have surged and her company has applied for at least nine new trademarks in the Philippines, Puerto Rico, Canada and the U.S — signs that the commercial engine of Ivanka’s brand is still humming even as the first daughter builds a new political career from her West Wing office.

Sales hit record levels in 2017, despite boycotts and several stores limiting her merchandise. U.S. imports, almost all of them from China, shot up an estimated 166 percent last year. The brand, which Trump still owns, says distribution is growing. It has launched new activewear and affordable jewelry lines and is working to expand its global intellectual property footprint. In addition to applying for the new trademarks, Ivanka Trump Marks LLC has won provisional approval from the Chinese government for four new trademarks since the inauguration.

Criminal conflict of interest law prohibits federal officials, like Trump and her husband, from participating in government matters that could impact their own financial interest or that of their spouse. Some argue that the more her business broadens its scope, the more it threatens to encroach on the ability of two of President Trump’s most trusted advisers to deliver credible advice on core issues like trade, intellectual property, and the value of the Chinese currency.

Trump has distanced herself from day-to-day management of her brand, which she still owns, and shifted its assets to a family-run trust valued at more than $50 million. In a recent interview with CBS News, she argued that her business would be doing even better if she hadn’t moved to Washington and placed restrictions on her team to ensure that “any growth is done with extreme caution.”

The new trademark applications seek the right to put Ivanka’s name on lingerie in the U.S., baby clothes in the Philippines, handbags in Puerto Rico and perfume in Canada, among a host of other things. Trademarks can be used to expand a business or defend against copycats. They have ethical implications for public servants because they are granted by foreign governments and can be enormously valuable.

Her brand said in a statement that Trump herself did not sign off on the new applications, adding they are “not necessarily” an indication of planned expansion.

Ivanka Trump Marks LLC has more than 180 pending and registered trademarks in countries that include China, Japan, Mexico, Turkey, Israel, Canada and Saudi Arabia. In China alone the company has 32 pending trademarks.

Ivanka and Kushner have taken on prominent roles as China interlocutors in the administration. Norman Eisen, who served as Barack Obama’s chief White House ethics lawyer, said he would “never have allowed it.”

“Ivanka has so many China ties and conflicts, yet she and Jared appear deeply involved in China contacts and policy,” he said. “For their own sake and the country’s, Ivanka and Jared should consider stepping away from China matters.”

Jamie Gorelick, an attorney for Ivanka Trump, said she and her husband would steer clear of specific areas that could impact her business, but are under no legal obligation to step back from huge swaths of policy, like trade with China.