YHC insider transactions

President Lu Yilin converted options into 179 shares and bought $1,800,000 worth of shares (2,000,000 units at $0.90), increasing direct ownership by 558,709% to 2,000,537 units (SEC Form 4)

Director Yeung Hong Chun converted options into 179 shares, increasing direct ownership by 50% to 537 units (SEC Form 4)

Director Chen Lijun converted options into 179 shares, increasing direct ownership by 50% to 537 units (SEC Form 4)

Director Lu Jing converted options into 179 shares, increasing direct ownership by 50% to 537 units (SEC Form 4)

CHIEF EXECUTIVE OFFICER Dollinger Sean converted options into 90 shares, increasing direct ownership by 3% to 2,922 units (SEC Form 4)

Director Lu Yilin converted options into 179 shares, increasing direct ownership by 50% to 537 units (SEC Form 4)

SEC Form 4 filed by No longer 10% Owner Leshner Robert

New insider Leshner Robert claimed ownership of 592,736 shares (SEC Form 3)

Large owner Lambeth George Patrick sold $546,318 worth of shares (180,000 units at $3.04), closing all direct ownership in the company (SEC Form 4)

New insider Lambeth George Patrick claimed ownership of 180,000 shares (SEC Form 3)

New insider Diveroli Investment Group Llc claimed ownership of 737,000 shares (SEC Form 3)

Director Lu Jing converted options into 179 shares, increasing direct ownership by 100% to 358 units (SEC Form 4)

Director Lu Yilin converted options into 179 shares, increasing direct ownership by 100% to 358 units (SEC Form 4)

Director Chen Lijun converted options into 179 shares, increasing direct ownership by 100% to 358 units (SEC Form 4)

Director Yeung Hong Chun converted options into 179 shares, increasing direct ownership by 100% to 358 units (SEC Form 4)

CHIEF EXECUTIVE OFFICER Dollinger Sean converted options into 89 shares, increasing direct ownership by 3% to 2,832 units (SEC Form 4)

President Lazar David E. was granted 100,000 shares (SEC Form 4)

Director O'Brien James P. converted options into 156 shares, increasing direct ownership by 20% to 936 units (SEC Form 4)

CHIEF EXECUTIVE OFFICER Dollinger Sean converted options into 3,125 shares, increasing direct ownership by 3% to 95,993 units (SEC Form 4)

Director Lu Jing converted options into 6,250 shares (SEC Form 4)

Director Chen Lijun converted options into 6,250 shares (SEC Form 4)

Director Yeung Hong Chun converted options into 6,250 shares (SEC Form 4)

Director Lu Yilin converted options into 6,250 shares (SEC Form 4)

Director O'Brien James P. converted options into 780 shares (SEC Form 4)

CHIEF EXECUTIVE OFFICER Dollinger Sean converted options into 15,625 shares, increasing direct ownership by 20% to 92,868 units (SEC Form 4)

SEC Form 3 filed by new insider Lu Yilin

SEC Form 3 filed by new insider Chen Lijun

SEC Form 3 filed by new insider Yeung Hong Chun

SEC Form 3 filed by new insider Lu Jing