Yes the starboard midship of the tanker obviously collided with the bow of the Chinese ship. Bow or midship are irrelevant under the COLREGS. The ship approaching from the starboard - the Chinese ship in your scenario - has the right of way. Regardless, both crews are responsible for safe navigation. No is right.
15. Crossing situations
When two power-driven vessels are crossing, the vessel which has the other on the starboard side must give way and avoid crossing ahead of her. The saying is "If to starboard red appear, 'tis your duty to keep clear". "...Act as judgement says is proper: port or starboard, back or stop her."
Yes the starboard midship of the tanker obviously collided with the bow of the Chinese ship. The tanker was the give-way vessel (rule 16) in a crossing situation (rule 15) to the other vessel that was standon (rule 17). However being the standon vessel is a greater burden than being the give-way vessel. This is the infamous "SHALL-MAY-SHALL" nobody wants to get into.
RULE 17 Action by Stand-on Vessel
(a) (i) Where one of two vessels is to keep out of the way the other shall keep her course and speed.
(ii) The latter vessel may however take action to avoid collision by her maneuver alone, as soon as it becomes apparent to her that the vessel required to keep out of the way is not taking appropriate action in compliance with these Rules.
(b) When, from any cause, the vessel required to keep her course and speed finds herself so close that collision cannot be avoided by the action of the give-way vessel alone, she shall take such action as will best aid to avoid collision.
(c) A power-driven vessel which takes action in a crossing situation in accordance with subparagraph (a)(ii) of this Rule to avoid collision with another power-driven vessel shall, if the circumstances of the case admit, not alter course to port for a vessel on her own port side.
(d) This Rule does not relieve the give-way vessel of her obligation to keep out of the way.