diff --git a/action.yml b/action.yml
index d7cdd30..3f2e170 100644
--- a/action.yml
+++ b/action.yml
@@ -70,6 +70,7 @@ runs:
         --template=eisvogel.latex
         --filter=mermaid-filter
         --filter=pandoc-crossref
+        --lua-filter=parse-html.lua
         --resource-path=.:/resources
         --data-dir=/resources
         --top-level-division=section
@@ -84,7 +85,7 @@ runs:
         --metadata=titlepage-rule-height:0
         --metadata=colorlinks:true
         --metadata=contact:admin@trustedcomputinggroup.org
-        --from=markdown+implicit_figures+table_captions
+        --from=markdown+implicit_figures+grid_tables+table_captions-citations-markdown_in_html_blocks
         --to=pdf
         ${{ inputs.input-md }}
         --output=${{ inputs.output-pdf }}
@@ -99,6 +100,7 @@ runs:
         --template=eisvogel.latex
         --filter=mermaid-filter
         --filter=pandoc-crossref
+        --lua-filter=parse-html.lua
         --resource-path=.:/resources
         --data-dir=/resources
         --top-level-division=section
@@ -113,7 +115,7 @@ runs:
         --metadata=titlepage-rule-height:0
         --metadata=colorlinks:true
         --metadata=contact:admin@trustedcomputinggroup.org
-        --from=markdown+implicit_figures+table_captions
+        --from=markdown+implicit_figures+grid_tables+table_captions-citations-markdown_in_html_blocks
         --to=latex
         ${{ inputs.input-md }}
         --output=${{ inputs.output-tex }}
@@ -129,9 +131,10 @@ runs:
         --filter=/resources/filters/info.py
         --filter=mermaid-filter
         --filter=pandoc-crossref
+        --lua-filter=parse-html.lua
         --resource-path=.:/resources
         --data-dir=/resources
-        --from=markdown+implicit_figures+table_captions
+        --from=markdown+implicit_figures+grid_tables+table_captions-citations-markdown_in_html_blocks
         --reference-doc=/resources/templates/tcg_template.docx
         --to=docx
         ${{ inputs.input-md }}
diff --git a/sample3.md b/sample3.md
index 1f91e97..73d29de 100644
--- a/sample3.md
+++ b/sample3.md
@@ -161,4 +161,39 @@ This section contains a Grid Table.
 | Earth               | -89.2 | 14    | 56.7  |
 +---------------------+-------+-------+-------+
 
+## HTML Table
+
+This section contains an HTML Table.
+
+<table>
+<colgroup>
+<col style="width: 13%" />
+<col style="width: 86%" />
+</colgroup>
+<thead>
+<tr>
+<th>A || B</th>
+<th>concatenation of B to A</th>
+</tr>
+</thead>
+<tbody>
+<tr>
+<td>CEIL(x)</td>
+<td>the smallest integer not less than x</td>
+</tr>
+<tr>
+<td><strong>FLOOR(</strong>x<strong>)</strong></td>
+<td>the largest integer not greater than x</td>
+</tr>
+<tr>
+<td>A = B</td>
+<td>equivalence (A is the same as B)</td>
+</tr>
+<tr>
+<td>{ A }</td>
+<td>an optional element</td>
+</tr>
+</tbody>
+</table>
+
 # References