Exhibit 99.1
May 23, 2018

China Yuchai International (CYI)
16 Raffles Quay #26-00, Hong Leong Building
Singapore 048581

Re: Shah Capital Proposals to be Discussed at the Upcoming June 2018
CYI AGM

Distinguished Directors of CYI:

Shah Capital being the third largest shareholder with 8% of the outstanding
shares of CYI, and our ownership dating back to 2006 does demonstrate our
unwavering support even with its tremendous share price underperformance
compare to its peers since 2004 (for example, two of our primary competitors
Weichai Power and Cummins have appreciated 1260% and 1370% respectively
compared to CYIs only 66% - chart).


Source: Reuters [Period 3/16/2004-5/23/2018] Total Return

We respectfully request the CYI board discuss the following proposals
at the upcoming AGM as profound changes are required, and the board
with its fiduciary obligation to its
minority shareholders, should strongly consider and address the following;

1) CI should properly allocate all future free cash flow compared to its
past strategy of bolstering bank cash balance only. Our suggestion would
be 60% directed towards annual dividend and opportunistic stock buy-backs,
and 40% be used in enhancing shareholder value through strategic and
rational M&A (especially in supply chain of the trucking industry).

2) With its strong balance sheet and abundant cash on hand, CYI should
establish a financial leasing company either by itself or in partnership
with a leading Chinese financial entity, which will drive higher
profitability for the listed entity.

3) Dual listing in Hong Kong or Shenzhen/Shanghai, CYI BOD could take
advantage of higher valuations assigned to dominant and profitable
businesses in the mainland including better investor familiarity of the
Yuchai brand, which may deliver a substantial increase in its
share price.

4) CYI BOD should retain an investment advisory firm immediately with
the clear goal to have CYI included in passive indices including MSCI
China and FTSE Russell to leverage the ongoing trend towards passive
investing/indexation.

5) CYI should consider adding/changing current BOD and top management
to bring new innovative ideas, speed, and determination to maintain
its top tier position going forward in light of seismic changes taking
place in the industry globally. The neutral to negative perception in
the investment community of CYI today may change as well with the infusion
of new talent.

6) To take full advantage of tremendous local and provincial incentives
available, CYI (with its top tier position) should invest selectively and
carefully into NEV space either with an established player
(over 100 to choose from), or on its own very soon, positioning the company
strategically ahead for the future.

Implementation of these sugguestions could drive the CYI share price over
USD$30 simply based on a comparable P/E ratio as Weichai Power.

Shah Capital insists and hopes CYI BOD gives serious consideration to our
aforementioned proposals and allocates necessary time to discuss at the
AGM for the benefit of all its minority shareholders.

Best Regards,


/s/Himanshu H. Shah
Himanshu H. Shah








Himanshu H. Shah
Managing Partner and Chief Investment Officer
                 SHAH CAPITAL OPPORTUNITY FUND LP