A National Guard veteran-turned-health care exec died on a business trip to China more than a week ago and his grief-stricken family on Long Island can’t get any answers — or even his body.

Retired Lt. Col. Norman Easy — former deputy commander of the 369th Sustainment Brigade, a successor unit to World War I’s famed “Harlem Hellfighters” — boarded a China Eastern Airlines jet at JFK Airport on Dec. 7 to fly to Shanghai.

The decorated former officer, who served two tours of duty in Iraq, was planning to seal a “groundbreaking” deal for employer Siemens Healthineers USA that he’d been working on for more than a year, his family said Wednesday.

Wife Nitxia Easy said the 57-year-old father of four was scheduled to arrive the evening of Dec. 8, and she grew worried when he didn’t let her know he’d landed.

“I told my son, I said, ‘Daddy has not called, and that is not right. Daddy always calls us,’ ” she recalled during an interview in the family’s Freeport home.

A call to her husband’s cellphone went straight to voicemail, she said, and she never got any response to a series of messages, texts and emails. So Nitxia, 48, contacted his colleagues in Shanghai the next day.

She said one co-worker went to a police station and spoke with a cop who said he’d been at the airport because a person matching Easy’s description had died on an inbound flight.

The co-worker then told the family to contact the US Consulate General in Shanghai, which gave them the devastating news.

Since then, the Consulate General has provided conflicting accounts of when Easy died, ranging from three hours before landing to just 30 minutes — but no explanation why, the family said.

Son Marcus, 28, said Chinese authorities have refused to release his dad’s body unless the family signs a waiver agreeing not to challenge an official account of what happened.

“There is a fear that his body is not being taken care of, or being tampered with, and evidence is being tampered with,” he said.

“It’s been 11 days, and we have no idea what methods are being used to preserve his body.”

Daughter Caitlin Easy, 20, broke down in tears as she said that “this is all delaying the process more and more, and we can’t even grieve yet.”

“I’m just frustrated and I’m sad. I just feel like he was such a good man, and he doesn’t deserve this,” she said.

In desperation, the family said they hired the International SOS security firm to try to retrieve his body.

In a statement Thursday morning, a Siemens spokesperson said the company was “saddened to learn of the untimely passing of our friend and colleague, Norman Easy. Our thoughts and prayers are with his family during this difficult time.”

Neither the US State Department, the Chinese Embassy in Washington DC, nor China Eastern Airlines returned requests for comment.