<DOCUMENT>
<TYPE>EX-99
<SEQUENCE>2
<FILENAME>Ex-99.1.txt
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Relative Value Partners
Northbrook, IL 60062
847-513-6300

November 2, 2016

Mr. David H. Gunning, Chair of Trustees
MFS Charter Income Trust
C/O MFS Investment Management
111 Huntington Avenue
Boston, MA 02199-7618

Re: MFS Charter Income Trust

To Mr. David H. Gunning,

Relative Value Partners (RVP) is a Registered Investment Advisor based in
Northbrook, Illinois. We manage approximately one billion dollars for clients
in separately managed accounts.  We are not a hedge fund and take a long term
value approach to investing.  We currently hold in excess of 4.5 million shares
of MFS Charter Income Trust (ticker: MCR) for our clients, with voting
discretion. RVP has owned a meaningful position in MCR for several years.

When we initially purchased MCR, one of the most attractive features of the fund
was its 10% annual repurchase policy. For closed-end funds, the ability to
repurchase shares at a discount is an exceptionally powerful mechanism to add
meaningful accretive return for shareholders, while often narrowing the discount
of the fund.  MCR's repurchase policy was a significant factor in our decision
to buy shares of the fund.

RVP and fellow MCR investors were misled. Year after year, the fund failed
to sufficiently employ the repurchase program and therefore failed to capture
meaningful return and failed to put shareholders' best interests first. In fact,
the fund only purchased, at most, about 2% of outstanding shares each year
since 2013, yet it was allowed to purchase up to 10%, even when the fund was
trading at large nominal and historic discounts.

From June to December of 2015, MCR only purchased shares during two months, even
though the fund averaged a discount wider than 13% and approached a 16% discount
numerous times. These were some of the widest fund level discounts historically,
presenting an excellent time to repurchase shares, and yet in many occurrences
not a single share was purchased. In fact, in all of 2015, MCR repurchased
shares in only 3 months despite trading at historically wide discount levels for
nearly all 12 months!

RVP expressed frustration to MFS numerous times and was met with evasive or
non-shareholder friendly reasons as to why more shares were not repurchased.
Based upon our conversations with MFS, the repurchase policy is misleading to
shareholders. In reviewing MCR's repurchase history, the fund has a pattern of
limiting repurchases to once per three months. It is virtually impossible for
the fund to actually implement a 10% repurchase policy if it limits itself to
purchasing shares only 4 months a year. The graph on the following page shows
the number of shares purchased by the fund, the months when purchases happened
and the full amount available for purchase. As you can clearly see, both the
pace and the scale of the repurchase are unsatisfactory.

As long term investors in MCR and as the largest shareholder, we believe the
fund failed and misled its investors.  We are asking the Board to convert MCR to
an open-end fund, in which there will be no misleading repurchase policy. At a
minimum, the board should issue a 25% tender at NAV to help compensate investors
for the missed returns from failing to sufficiently employ the repurchase
program.

We look forward to your response.

Sincerely,


Maury Fertig
CIO/ Founding Partner

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