HLM Identifies Strong Rubidium Grades up to 0.53% Rb20 over 14 Meters on the Pak Rare Metals Project in Northwestern Ontario

  HLM Identifies Strong Rubidium Grades up to 0.53% Rb20 over 14 Meters on the
  Pak Rare Metals Project in Northwestern Ontario

Business Wire

SUDBURY, Ontario -- April 24, 2013

Houston Lake Mining Inc. (TSX.V: HLM), is a mining exploration company which
is actively exploring for the rare metals lithium, cesium, tantalum, and
rubidium by currently focusing on its 100% owned and optioned PAK Rare Metals
Project in northwestern Ontario, Canada. HLM is pleased to announce some of
the remaining results from its 2012 Channel Sample Program on the Pakeagama
Lake pegmatite, located at the 1,792 hectare (4,424 acre) PAK Rare Metals
Project.

In September 2012, Peter J. Vanstone, P.Geo. the qualified person (QP) for the
project, conducted a 91 sample channel sampling program on the Pakeagama Lake
pegmatite in order to confirm historical results and to add additional channel
samples while further sampling by distinct geologic zones. In addition to the
high grade lithium oxide results up to 4.74 Li[2]0 over 15 meters, and strong
tantalum oxide results up to 192ppm Ta[2]0[5] over 14 meters reported by HLM
in January, 2013, the program has also identified rubidium (Rb) oxides in a
distinct pegmatite zone as discussed below:

                       Central Intermediate Zone (CIZ)

CHANNEL         AZIMUTH
SAMPLE                    LENGTH (M)  Rb[2]0[5] (%)
                (DEGREES)
PAK-12-CH001R   226         14.00        0.53
including                   5.00         0.62
also                       1.00         0.81
PAK-12-CH007R   222         6.00         0.67
including                  2.00         1.17
PAK-12-CH019    213         9.70         0.65
including                   6.00         0.68
also                       1.00         0.96

                                   Table 1

The Central Intermediate Zone (CIZ) is located in the upper portions of the
pegmatite. It is in contact with both the Upper Intermediate Zone (UIZ) and
Upper Wall Zone, and persists to the southeast edge of the outcrop where it is
believed the pegmatite continues under the till cover. Channel 19 is located
in the central portion of the exposed CIZ where the zone consists
predominantly of grey K-feldspar with minor lithian mica + quartz alteration.
To the southeast, the K-feldspar is altered to a mica+quartz mixture and was
sampled by Channel 7R (highest rubidium grades found to date in the exposed
pegmatite). Samples from this channel consisted of similarly sized fragments
of randomly oriented K-feldspar with varying degrees of mica+quartz
alteration. In the adjacent area to the northeast of Channel 7R, the
alteration consists of K-feldspars more or less completely replaced with a
lithian mica + quartz mixture where veinlets and patches of lepidolite occur.
This altered zone, which was sampled by Channel 1, contains strong tantalum
and rubidium grades over a significant width.

When considering the CIZ as outlined in Table 1, the distance between channels
19 and 1 is approximately 35m. Overall, this zone has an exposed surficial
expression of approximately 100m in length and remains open to both the
southeast and northwest.

The Pakeagama Lake pegmatite does not currently have a resource, however the
mineralogy of the CIZ and the presence of lepidolite is similar to the CIZ
described in the Tanco pegmatite. The Tanco pegmatite is located southwest of
the PAK Rare Metals Project in southeastern Manitoba and has recently ceased
mining production from their CIZ zone.

“In addition to the high-grade lithium results of up to 4.74 Li[2]0 over 15
meters, and high tantalum results of up to 192ppm over 14 meters encountered
and reported in January, these strong rubidium grades from the program
entrench the Pakeagama Lake pegmatite as a leading high-grade, multi-element
exploration target for rare metals in North America. Furthermore, within the
next three to five weeks, HLM will begin receiving assay results from our
Phase I, 1,000-meter diamond drill program that commenced in March,“ said
Trevor R. Walker, President of HLM.

Due Diligence
All scientific and technical information in this release has been reviewed and
approved by Peter J. Vanstone, P.Geo. who is the qualified person (QP) under
the definitions established by National Instrument 43-101. Under HLM’s QA/QC
procedures, channels are cut with a motorized circular diamond saw, and are 4
cm wide and 10 cm deep. The channels are oriented perpendicular to the strike
of the pegmatite internal mineralogical zones and are cut continuously across
the zones. The samples are removed using a hammer and chisel. The length of a
channel is determined by the width of the pegmatite zone. Offset channels are
cut where deemed appropriate. Sample lengths typically are 1 metre but can be
less depending on zone mineralogy and boundaries. Samples are described,
placed into a poly sample bag with a numbered sample tag and then shipped to
the assay lab for quantitative analysis for select elements. All HLM samples
are currently being assayed by Activation Laboratories Ltd. with all samples
being delivered to their Thunder Bay facility. Sample blanks along with
tantalum certified reference samples and lithium-rubidium-cesium standard
samples are routinely inserted into the sample stream in accordance with
industry best practices. At the completion of each program, approximately 10%
of the channel sample pulps are submitted to a secondary ISO certified
laboratory for assay verification.

About Houston Lake Mining Inc.
HLM is a mining exploration company that is specialized in rare metals and
actively exploring for lithium, cesium, tantalum, and rubidium by currently
focusing on its 100% owned and optioned PAK Rare Metals Project in
northwestern Ontario, Canada. HLM has a total of 70,236,695 common shares
issued and outstanding. For additional information, please visit
www.houstonlakemining.com.

Company Contact Information
Henry J. Kloepper, CEO, Trevor R. Walker, President
2736 Belisle Drive
Val Caron, ON.
P3N 1B3 CANADA
T. +001 705.897.7622
F. +001 705.897.7618

Forward-looking Statements
Neither the TSX Venture Exchange nor its Regulation Services Provider (as that
term is defined in the policies of the TSX Venture Exchange) accepts
responsibility for the adequacy or accuracy of this release. This release
includes certain statements that may be deemed “forward-looking statements”.
All statements in this release, other than statements of historical facts,
that address future production, reserve potential, exploration drilling,
exploitation activities and events or developments that the Company expects
are forward-looking statements. Although the Company believes the expectations
expressed in such forward-looking statements are based on reasonable
assumptions, such statements are not guarantees of future performance and
actual results or developments may differ materially from those in the
forward-looking statements. Factors that could cause actual results to differ
materially from those in forward looking statements include market prices,
exploitation and exploration successes, continued availability of capital and
financing, and general economic, market or business conditions. Investors are
cautioned that any such statements are not guarantees of future performance
and those actual results or developments may differ materially from those
projected in the forward-looking statements. For more information on the
Company, Investors should review the Company’s registered filings what are
available at www.sedar.com.

Contact:

Houston Lake Mining Inc.
Henry J. Kloepper, +001 705.897.7622
CEO
or
Trevor R. Walker, +001 705.897.7622
President
F. +001 705.897.7618