<?php 
$terms = get_terms([
    'taxonomy' => 'category',
    'parent'   => get_queried_object_id(),
        
]);
?>
<ul class="ts-category-list float-right">
<?php if(is_array($terms) && count($terms) > 1): foreach($terms as $term): ?>
    <li>
        <a href="<?php echo get_category_link($term->term_id); ?>">
            <?php echo get_cat_name($term->term_id); ?>
        </a>
    </li>
<?php endforeach; endif; ?>
</ul>