Boston, MA 02116 March 17, 2020 To the Trustees of John Hancock Funds III Boston, MA 02116 Re: Rule 12b-1 Fee Waiver Letter Agreement

Exhibit (h)(15)

Xxxx Xxxxxxx Investment Management Distributors LLC

000 Xxxxxxxx Xxxxxx

Boston, MA 02116

March 17, 2020

To the Trustees of

Xxxx Xxxxxxx Funds III

000 Xxxxxxxx Xxxxxx

Boston, MA 02116

Re:      Rule 12b-1 Fee Waiver Letter Agreement

With reference to each of the Distribution Plans entered into by and between Xxxx Xxxxxxx Investment Management Distributors LLC (formerly Xxxx Xxxxxxx Funds, LLC and hereinafter the “Distributor”) and Xxxx Xxxxxxx Funds III (the “Trust”), on behalf of each of its series listed in Appendix A (each, a “Fund” and collectively, the “Funds”), we hereby notify you as follows:

1. The Distributor agrees to contractually waive and limit its Rule 12b-1 distribution fees and/or service fees to the extent necessary to achieve the aggregate Rule 12b-1 distribution and service fees of each Fund as set forth in Appendix A hereto. The expense waiver agreements expire on the dates specified, unless renewed by mutual agreement of the Fund and the Distributor based upon a determination that this is appropriate under the circumstances at that time.

2. We understand and intend that the Trust will rely on this undertaking in overseeing the preparation and filing of Post-effective Amendments to the Registration Statements on Form N-1A for the Trust and the Funds with the Securities and Exchange Commission, in accruing each Fund’s expenses for purposes of calculating its net and gross asset value per share, and for other purposes permitted under Form N-1A and/or the Investment Company Act of 1940, as amended, and we expressly permit the Trust so to rely.

	Sincerely,
	XXXX XXXXXXX INVESTMENT MANAGEMENT DISTRIBUTORS LLC
	By:	/s/ Xxxxxxx X. Xxxx
		Xxxxxxx X. Xxxx
		Chief Financial Officer

Agreed and Accepted
on behalf of Xxxx Xxxxxxx Funds III
By:	/s/ Xxxxxxx X. Xxxxx
	Xxxxxxx X. Xxxxx
	Chief Financial Officer

A copy of the document establishing the Trust is filed with the Secretary of The Commonwealth of Massachusetts. This Agreement is executed by the officer in his capacity as such and not as an individual and is not binding upon any of the Trustees, officers or shareholders of the Trust individually but only upon the assets of the Funds.

APPENDIX A

XXXX XXXXXXX FUNDS III

Fund Class R4 Expiration Date
of Waiver/Limit

Xxxx Xxxxxxx Disciplined Value Fund	0.15%1	7/31/20211
Xxxx Xxxxxxx Disciplined Value Mid Cap Fund	0.15%1	7/31/20211
Xxxx Xxxxxxx International Growth Fund	0.15%1	7/31/20211
Xxxx Xxxxxxx U.S. Quality Growth Fund	0.15%1	7/31/20211

¹ At the March 16-17, 2020 meeting of the Board of Trustees of the Trust, the Distributor notified the Board of, and the Board approved, the extension of the waivers and limits of the Rule 12b-1 distribution fees and/or service fees for Class R4 shares of the Funds set forth above to July 31, 2021, each effective upon the current expiration date of July 31, 2020.