Second-placed Kang was poised to join Fowler in the lead, only to miss a putt at the final hole that was officially measured at four feet, but looked considerably shorter.
Kang needs a win in order to qualify for the Masters, but the Korean said he isn't focusing on that despite his strong opening round: "I don't know anything about the future, and whatever happens, happens".
Kang had a bogey-free round of his own with eight birdies entering the 18th hole, but a bogey prevented him from owning a share of the lead.
The 28-year-old threw the first pitch at the Houston Astros baseball game following his opening round at the Shell Houston Open.
The 29-year-old, who entered the week ranked 202nd in the world, opened the second round one shot off the lead held by American Rickie Fowler. "If the mud was kind of kicking in, it ended up being a good shot".
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The attacker then crashed into a gate near the Palace of Westminster and fatally stabbed a police officer, authorities said . Clint Payne agreed, saying, "He was an incredible individual who loved everyone and tried to make the world a better place".
Half of the field in the tour's first major of the year was still on the course when play was suspended.
Rose found water at the fourth and ran-up a bogey-six, but he clawed back the shot with a superb approach to four feet at the next before the Englishman made five consecutive birdies from the ninth, including a sublime chip-in for a three at the 11th.
Rose's playing partner Spieth was one over after seven holes before getting under the card with birdies at eight and nine, and he picked up further shots at the two par-fives on the back nine to get within five of Fowler.
"I was fortunate enough to take advantage of the par 3s, played them at 3 under, and I managed my way around nicely with mud balls all day as everyone else did", Fowler said. "Family is great. I've been putting in work in the gym, I've spent some quality time with Butch [Harmon, his coach] the first two days here".
And playing partner Jordan Spieth was faring even worse, the former Masters champion and Texas native three over par for the day and level for the tournament, a shot outside the projected cut.