API.CN · 2024-05-06 12:00:00

Appia Announces Preliminary Desorption Results and Confirms Ionic Adsorption Clay Rare Earth Mineralization in Brazil

Exploration Programs

Appia Announces Preliminary Desorption

Results and Confirms Ionic Adsorption Clay

Rare Earth Mineralization in Brazil

Toronto, Ontario--(Newsfile Corp. - May 6, 2024) - Appia Rare Earths & Uranium Corp.

(CSE: API)

(OTCQX: APAAF) (FSE: A0I0) (MUN: A0I0) (BER: A0I0)

(the "

Company

" or

"Appia"

) announced

today the confirmation of the presence of Ionic Adsorption Clay (IAC) rare earth elements (REE) at the

PCH project. A total of 100 samples were sent to AGS Laboratories in La Serena, Chile and the results

consistently indicated that the regolith developed over the Ipora Granite presented significant recoveries

for Magnet Rare Earth Oxides (MREO) and Heavy Rare Earth Oxides (HREO) consistent with the

expected profile of an IAC ore.

Stephen Burega, President, commented, "We are very excited with the recoveries of this first phase of

testing. The desorbable Magnet and Heavy Rare Earth recoveries achieved in these initial desorption

tests confirm high-grade ionic adsorption clay characteristics which compare very favourably to

commercially viable operations in China and globally. We will now work towards fine-tuning the process

to increase the level of recovery. Appia is confident that the expansion of our exploration efforts across

the PCH project area will uncover many new targets exhibiting this same IAC profile and desorbability."

Highlights

Samples selected from the different geological frameworks, and at distinctive grades, has led to

the characterization of two REE mineralization styles. One is associated with the regolith

originated from the weathering of the Ipora Granite intrusion, in which the IAC developed and

favourable desorbability is present, and one is associated with a carbonatite intrusion-dyke with

grades of from 269.7 to 95,156 parts per million (PPM) Total Rare Earth Oxide (TREO) (see Map

1).

Selected samples from Reverse Circulation (RC) drill holes showed TREO grades ranging from

1,236 ppm to 39,881 ppm and Total Desorbable Rare Earth Oxides (TREO D) ranging from 178.9

ppm to 1,617.8 ppm. The representative results from the desorption tests are presented in Table 1

below. The full set of results are included in this

LINK

Desorbable values from RC holes located in the weathered portion of the Ipora Granite show

representative preliminary desorption results among the REE (Map 2) with Nd2O3 and Pr2O3

ranging from 0.5 ppm to 451.2 ppm, from 0.1% to 48.2% recovery, and Tb4O7 and Dy2O3 ranging

from 0.2 ppm to 70.2 ppm, from 0.6 to 86.7% recovery (Table 1).

These favourable REE desorption results within the regolith open the potential to identify new

targets across Appia's very large project area of +40,000 ha which strategically cover the majority

(71.4%) of the Ipora Granite extension in the region. (See map 3)

The results presented are preliminary, and Appia's team will work to optimize the desorption

process for future testing to maximize recoveries while minimizing operating and capital costs. As

part of this process, samples from entire RC holes from Target IV and Buriti Zones as well as from

selected new exploratory targets are being prepared to be sent for desorption test work.

Desorbability results were conducted using Ammonium Sulfate at 0.5M, pH4, for 20 minutes. No

QAQC samples were introduced in this preliminary desorbability test.

Tom Drivas stated, "These results are another example of the exceptionally fast progress that we have

made in less than a year, and we are confident that we will continue to maintain this momentum.

Confirming the presence of the IAC mineralization style in the Ipora Granite is an important milestone for

the PCH project, and as more data becomes available, we will expand our understanding of this IAC

mineralization.

We know now that we clearly have two styles of mineralization including the REE high-

grade zone previously identified at Target IV, and the IAC that are in this geological unit above the Ipora

granite that underlays the majority of our land package. This finding improves the potential for new IAC

discoveries across the full extent of the PCH project."

Holeid

Interval

TREO

%TREO D

HREO

%HREO D

NdPr

%NdPr D

DyTb

%DyTb D

From

Desor-

bed

TREOD/TREO*100

Desor-

bed

HREOD/

HREO*100

Desor-

bed

NdPrD/NdPrD*100

Desor-

bed

DyTbD/DyTbD*100

ppm

PCH-

RC-

001

3.0

4.0

4505.8

495.1

11.0

724.6

147.4

20.3

889.4

120.4

13.5

124.9

20.3

PCH-

RC-

001

5.0

6.0

4215.9

760.9

18.0

806.6

266.9

33.1

822.9

169.7

20.6

141.6

37.9

PCH-

RC-

001

6.0

7.0

3404.6

488.5

14.3

815.9

193.4

23.7

574.3

99.6

17.3

121.6

26.1

PCH-

RC-

007

10.0

11.0

2214.6

338.9

15.3

362.8

136.0

37.5

471.0

74.1

15.7

46.1

15.8

PCH-

RC-

008

5.0

6.0

2545.4

858.1

33.7

453.0

241.8

53.4

508.0

245.0

48.2

71.3

35.2

PCH-

RC-

008

6.0

7.0

7940.4

1617.8

20.4

1523.5

471.8

31.0

1720.5

451.2

26.2

249.7

70.2

PCH-

RC-

008

7.0

8.0

5708.1

1184.3

20.7

1146.6

359.4

31.3

1180.0

318.2

27.0

181.6

51.3

PCH-

RC-

008

8.0

9.0

2645.2

648.7

24.5

483.6

206.3

42.7

535.4

168.5

31.5

72.4

29.2

PCH-

RC-

008

9.0

10.0

5741.7

514.3

9.0

990.8

171.1

17.3

908.1

122.2

13.5

153.9

24.1

PCH-

RC-

023

9.0

10.0

2163.1

215.2

9.9

236.7

80.1

33.8

416.3

39.7

9.5

37.9

7.8

PCH-

RC-

029

3.0

4.0

1548.1

256.3

16.6

93.7

45.7

48.8

263.3

81.8

31.1

15.5

5.8

PCH-

RC-

034

9.0

10.0

5357.4

398.6

7.4

604.5

138.5

22.9

1089.0

108.8

10.0

80.6

16.5

PCH-

RC-

037

4.0

5.0

3166.1

178.9

5.7

96.8

52.6

54.3

499.6

48.6

9.7

12.6

6.2

PCH-

RC-

043

3.0

4.0

2046.5

380.9

18.6

70.6

64.3

91.1

417.9

133.3

31.9

9.2

8.0

PCH-

RC-

047

6.0

7.0

1870.7

333.8

17.8

298.2

105.7

35.5

425.8

109.8

25.8

38.7

13.1

PCH-

RC-

047

7.0

8.0

2224.2

212.8

9.6

132.1

70.2

53.2

417.7

66.7

16.0

18.5

8.1

PCH-

RC-

050

3.0

4.0

1059.0

307.6

29.0

117.1

94.1

80.4

245.6

97.9

39.9

16.3

11.9

PCH-

RC-

050

4.0

5.0

1262.0

229.2

18.2

160.0

82.4

51.5

218.0

69.1

31.7

21.1

8.7

PCH-

RC-

050

5.0

6.0

1236.2

294.2

23.8

149.9

98.9

65.9

276.6

91.2

33.0

19.5

12.5

PCH-

RC-

051

4.0

5.0

9259.6

560.1

6.0

215.0

60.7

28.2

2042.7

218.6

10.7

41.1

8.1

PCH-

RC-

051

5.0

6.0

17538.4

617.5

3.5

422.1

70.7

16.7

3698.9

242.0

6.5

73.0

9.3

PCH-

RC-

051

7.0

8.0

7110.6

630.8

8.9

202.9

91.2

44.9

1557.1

220.0

14.1

31.1

10.4

PCH-

RC-

060

2.0

3.0

3001.4

393.6

13.1

122.1

49.8

40.8

631.5

106.8

16.9

20.6

5.9

PCH-

RC-

066

8.0

9.0

39881.2

637.6

1.6

1299.9

302.9

23.3

8089.2

126.7

1.6

166.9

20.1

Table 1 - Preliminary desorption results of representative samples. To view the full list of

results, please

click here

*Total Rare Earth Oxides: TREO = Y2O3 + Eu2O3 + Gd2O3 + Tb4O7 + Dy2O3 + Ho2O3 + Er2O3 + Tm2O3 + Yb2O3 + Lu2O3 + La2O3 + Ce2O3 +

Pr2O3 + Nd2O3 + Sm2O3

*Heavy Rare Earth Oxides: HREO = Gd2O3 + Tb4O7 + Dy2O3 + Ho2O3 + Er2O3 + Tm2O3 + Yb2O3 + Lu2O3 + Y2O3

*NdPr = Nd2O3+Pr2O3

*DyTb = Dy2O3+Tb4O7

*Element to Oxide Conversion Factor - Cerium Ce2O3 1.1713, Cerium CeO2 1.2284, Dysprosium Dy2O3 1.1477, Erbium Er2O3 1.1435, Europium

Eu2O3 1.1579, Gadolinium Gd2O3 1.1526, Holmium Ho2O3 1.1455, Lanthanum La2O3 1.1728, Lutetium Lu2O3 1.1371, Neodymium Nd2O3 1.1664,

Praseodymium Pr2O3 1.1703, Praseodymium Pr6O11 1.2082, Samarium Sm2O3 1.1596, Terbium Tb2O3 1.1510, Terbium Tb4O7 1.1762, Thulium

Tm2O3 1.1421, Yttrium Y2O3 1.2699, Ytterbium Yb2O3 1.1387

* Desorbability results were conducted using Ammonium Sulfate at 0.5M, pH4, for 20 minutes.

Map 1 - Location and structure of the TREO high grade zone

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/5416/208113_e0981fb3742b7955_001full.jpg

Map 2 - Preliminary desorption results from Buriti and IV targets, High (green) above 20%,

Medium (orange) between 10 and 20% and Low (red) below 10%.

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/5416/208113_e0981fb3742b7955_002full.jpg

Map 3 - Distribution of the Ipora Granite Unity under Appia's Claims.

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/5416/208113_e0981fb3742b7955_003full.jpg

Andre Costa, VP Exploration for Brazil, commented, "These preliminary desorption results shows the

distinct rare earth mineralization in the PCH Project. The high-grade zone associated with a Carbonatitic

intrusion or dyke, and the regolith developed above the Ipora granite, which hosts the IAC REE

mineralization. We are directing our efforts on the latter with the exploratory auger campaign already

initiated on numerous new targets."

On March 1

, 2024, the Company announced its maiden Mineral Resource Estimate (MRE) on Target

IV and the Buriti Zone (

Click here for the Press Release

), and the companion NI 43-101 technical report

on the PCH Project was filed on April 16

, 2024. (

Click here for the Press Release

)

Qualified Person

The technical information in this news release, including the information related to geology, drilling, and

mineralization, has been reviewed and approved by Andre L. L. Costa, current Appia's VP Exploration

for Brazil, with more than 29 years of relevant experience. Mr. Costa is a Fellow of Australian Institute of

Geoscientists (AIG) and is a Qualified Person (QP) as defined by National Instrument 43-101 -

Standards of Disclosure for Mineral Projects.

About Appia Rare Earths & Uranium Corp. (Appia)

Appia is a publicly traded Canadian company in the rare earth element and uranium sectors. The

Company holds the right to acquire up to a 70% interest in the PCH Ionic Adsorption Clay Project (See

June 9

, 2023 Press Release - Click

HERE

) which is 40,963.18 ha. in size and located within the Goiás

State of Brazil. (See January 11

, 2024 Press Release -

Click HERE

) The Company is also focusing on

delineating high-grade critical rare earth elements and gallium on the Alces Lake property, and exploring

for high-grade uranium in the prolific Athabasca Basin on its Otherside, Loranger, North Wollaston, and

Eastside properties. The Company holds the surface rights to exploration for 94,982.39 hectares

(234,706.59 acres) in Saskatchewan. The Company also has a 100% interest in 13,008 hectares

(32,143 acres), with rare earth elements and uranium deposits over five mineralized zones in the Elliot

Lake Camp, Ontario.

Appia has 136.3 million common shares outstanding, 145 million shares fully diluted.

Cautionary note regarding forward-looking statements: This News Release contains forward-looking

statements which are typically preceded by, followed by or including the words "believes", "expects",

"anticipates", "estimates", "intends", "plans" or similar expressions. Forward-Looking statements are

not a guarantee of future performance as they involve risks, uncertainties and assumptions. We do

not intend and do not assume any obligation to update these forward-looking statements and

shareholders are cautioned not to put undue reliance on such statements.

Neither the Canadian Securities Exchange nor its Market Regulator (as that term is defined in the

policies of the CSE) accepts responsibility for the adequacy or accuracy of this release.

For more information, visit

www.appiareu.com

As part of our ongoing effort to keep investors, interested parties and stakeholders updated, we have

several communication portals. If you have any questions online (

Facebook

) please feel

free to send direct messages.

To book a one-on-one 30-minute Zoom video call, please

click here.

Contact:

Tom Drivas, CEO and Director

(e)

[email protected]

Stephen Burega, President

(e)

[email protected]

To view the source version of this press release, please visit

https://www.newsfilecorp.com/release/208113

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