Conversion of Loan Notes in Castleton Technology

MXC Capital Limited

("MXC" or the "Company")

Conversion of Loan Notes in Castleton Technology plc

MXC (AIM: MXCP), the technology focused adviser and investor, announces that it has served a conversion notice with respect to the remaining convertible loan notes it holds in Castleton Technology plc ("CLNs"), together with the accrued interest, amounting to £632,495 in total.

The CLNs are convertible at 85.6 pence per ordinary share of 2 pence each in the capital of Castleton ("Castleton Shares") therefore 738,896 new Castleton Shares have been allotted to MXC and will be issued conditional upon the admission of the new Castleton Shares to trading on AIM ("Admission"). Admission is expected to occur at 8.00 a.m. on 17 August 2018. Using the mid-closing price as at 13 August 2018 of 104.5 pence per share, this values the new Castleton Shares at £772,146.

Following Admission, MXC will hold 6,080,484 Castleton Shares in total, representing 7.5% of the issued share capital of Castleton.

Castleton is a leading supplier of complementary software and managed services to the public and not-for-profit sectors listed on the AIM market of the London Stock Exchange. Further details about Castleton (including latest financial reports) are available at www.castletonplc.com.

MXC Capital Limited

Ian Smith

+44(0)20 7965 8149

Zeus Capital Limited (Nominated adviser and broker)

Giles Balleny

+44 (0)20 3829 5000

About MXC Capital Limited www.mxccapital.com

MXC is a specialist technology adviser and investor with a track record of investing in and advising companies in the TMT sector. MXC brings together a deep knowledge of technology, first-hand experience of managing companies in the sector, an ability to make meaningful investments and a highly experienced corporate advisory team in support, all of which combine to grow shareholder value.