If you don't need the most recent data then you can use the cached version of the page from Google. 
<?php
use Scraper\Scrape\Crawler\Types\GeneralCrawler;
use Scraper\Scrape\Extractor\Types\MultipleRowExtractor;
require_once(__DIR__ . '/../vendor/autoload.php');
date_default_timezone_set('UTC');
// Create crawler
$crawler = new GeneralCrawler(
    'http://webcache.googleusercontent.com/search?q=cache:http://www.asx.com.au/asx/statistics/todayAnns.do&num=1&strip=0&vwsrc=0'
);
// Setup configuration
$configuration = new \Scraper\Structure\Configuration();
$configuration->setTargetXPath('//div[@class="page"]//table');
$configuration->setRowXPath('.//tr');
$configuration->setFields(
    [
        new \Scraper\Structure\TextField(
            [
                'name'  => 'Headline',
                'xpath' => './/td[3]',
            ]
        ),
        new \Scraper\Structure\TextField(
            [
                'name'  => 'Published',
                'xpath' => './/td[1]',
            ]
        ),
        new \Scraper\Structure\TextField(
            [
                'name'  => 'Pages',
                'xpath' => './/td[4]',
            ]
        ),
        new \Scraper\Structure\AnchorField(
            [
                'name'               => 'Link',
                'xpath'              => './/td[5]/a',
                'convertRelativeUrl' => false,
            ]
        ),
        new \Scraper\Structure\TextField(
            [
                'name'  => 'Code',
                'xpath' => './/text()',
            ]
        ),
    ]
);
// Extract  data
$extractor = new MultipleRowExtractor($crawler, $configuration);
$data = $extractor->extract();
print_r($data);
I was able to get the following data using above code. 
Array
(
    [0] => Array
        (
            [Code] => ASX
            [hash] => 6e16c02b10a10baf739c2613bc87f906
        )
    [1] => Array
        (
            [Headline] => Initial Director's Interest Notice
            [Published] => 10:57 AM
            [Pages] => 1
            [Link] => /asx/statistics/displayAnnouncement.do?display=pdf&idsId=01868833
            [Code] => STO
            [hash] => aa2ea9b1b9b0bc843a4ac41e647319b4
        )
    [2] => Array
        (
            [Headline] => Becoming a substantial holder
            [Published] => 10:53 AM
            [Pages] => 2
            [Link] => /asx/statistics/displayAnnouncement.do?display=pdf&idsId=01868832
            [Code] => AKG
            [hash] => f8ff8dfde597a0fc68284b8957f38758
        )
    [3] => Array
        (
            [Headline] => LBT Investor Conference Call Business Update
            [Published] => 10:53 AM
            [Pages] => 9
            [Link] => /asx/statistics/displayAnnouncement.do?display=pdf&idsId=01868831
            [Code] => LBT
            [hash] => cc78f327f2b421f46036de0fce270a6d
        )
...
Disclaimer: I used https://github.com/rajanrx/php-scrape framework and
  I am an author of that library. You can grab data using simple curl as well using the
  xpath listed above.I hope this might be helpful :)