The Japan Times reported that the pair had been among the top prospects for the nation at the Tokyo Olympics in 2020, and were teammates at last year's canoe sprint world championships in the Czech Republic.
Suzuki, a professional kayaker from Japan, has been banned from competition for eight years after spiking the drink of a rival so he would fail a doping test.
The Japan Canoe Federation is reportedly considering installing surveillance cameras at competition and training venues after a kayaker was penalized for drugging a rival.
Despite the lifting of the temporary ban, Komatsu's results at the national championship, where he finished first in the men's kayak single, have been nullified.
A canoe sprinter who failed a drug screening after a teammate spiked his drink with an anabolic steroid said Wednesday he had nearly given up on competing at the 2020 Tokyo Olympics following the test result.
The federation may expel Suzuki from the sport.
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In a tweet, Trump, who hurled fresh insults at the North Korean leader this week, took credit for any dialogue that takes place. Pyongyang could use it as a leverage to demand the cancelation of U.S. -South Korean military drills.
The Japan Canoe Federation said Komatsu's suspension and records that had been stripped have been restored.
Sports director at the organizing committee of the Tokyo Olympics and Paralympics Koji Murofushi expressed regret about the drugging incident.
Komatsu (R) at the 2014 Asian Games.
Japan's first case of an athlete failing a doping test due to deliberate contamination has left authorities scrambling to find an appropriate response.
"I was fretting", Suzuki was quoted as telling the federation. Narita, also an executive with the International Canoe Federation, which is pushing for a zero tolerance policy on doping, said he could not believe the incident took place in his backyard. "I did it as I thought he would overwhelm me".